McKAY, Circuit Judge.
This ease involves a military prisoner’s petition for habeas corpus that was denied by the district court.
I. Facts
Defendant was one of three marines charged with attempted robbery, conspiracy to rob, premeditated murder, felony murder, and robbery in connection with events occurring on May 31, 1981 and June 1, 1981. Defendant’s case was initially set to be heard on September 1, 1981. However, due to continuances sought by the government, defendant’s court-martial did not take place until December 11, 1981. The court-martial convicted defendant on all charges by a two-thirds vote. A conviction of premeditated murder or felony murder carries a mandatory sentence of death or life imprisonment. Defendant was sentenced to life imprisonment when the court-martial did not unanimously vote for death. The military judge did not require three-fourths of the court-martial to concur in the life sentence.
The convening authority approved the findings and sentence of the court-martial. Defendant then presented seven allegations of error to the Navy-Marine Corps Court of Military Review. Defendant repeats four of those claims of error here. Defendant now claims: One, that the voting procedure of the court-martial violated due process; two, that the composition of the court-martial combined with the voting procedures violated due process; three, that he was denied a speedy trial; and four, that exclusion of expert witness testimony violated due process. The Court of Military Review found no error in the proceedings, after specifically reviewing defendant’s claims regarding speedy trial and exclusion of expert witness testimony. The court summarily denied defendant’s claims regarding the three-fourths voting procedures and the composition of the jury. See United States v. Dodson, 16 M.J. 921 (N.M.C.M.R.1983). The United States Court of Military Appeals then affirmed the conviction. See United States v. Dodson, 21 M.J. 237 (C.M.A.1986), on rehearing, 22 M.J. 257 (C.M.A.1986). The United States Supreme Court denied certiorari on December 8, 1986. See Dodson v. United States, 479 U.S. 1006, 107 S.Ct. 644, 93 L.Ed.2d 701 (1986).
On June 30, 1987, defendant filed a petition for a writ of habeas corpus in the district court. After fully reviewing the voting procedures claim and refusing to review the other three suggestions of error, the district court denied the writ. 702 F.Supp. 267. Defendant now appeals the denial of the writ to this court.
[1252]*1252II. Federal Court Review of Military Courts-Martial
When reviewing military courts-martial on habeas corpus grounds, the Supreme Court historically simply looked to see if the court-martial had jurisdiction. See Ex parte Reed, 100 U.S. 13, 23, 25 L.Ed. 538 (1879). See also Collins v. McDonald, 258 U.S. 416, 418, 42 S.Ct. 326, 327, 66 L.Ed. 692 (1922); McClaughry v. Deming, 186 U.S. 49, 69, 22 S.Ct. 786, 794, 46 L.Ed. 1049 (1902); Johnson v. Sayre, 158 U.S. 109, 117, 15 S.Ct. 773, 776, 39 L.Ed. 914 (1895). Over time the Court began to look more carefully at the merits of the claims while still calling its review a search for jurisdiction. See Johnson v. Zerbst, 304 U.S. 458, 58 S.Ct. 1019, 82 L.Ed. 1461 (1938). Finally, in Burns v. Wilson, 346 U.S. 137, 73 S.Ct. 1045, 97 L.Ed. 1508 (1953), the Supreme Court noted that Congress had given the federal courts the power to review courts-martial on habeas corpus applications. Burns v. Wilson, 346 U.S. 137, 139, 73 S.Ct. 1045, 1047, 97 L.Ed. 1508 (1957). The Burns Court then explained the limitations on federal court review of military habeas corpus cases. “[TJhese provisions do mean that when a military decision has dealt fully and fairly with an allegation raised in that application, it is not open to a federal civil court to grant the writ simply to re-evaluate the evidence.” Burns, 346 U.S. at 142, 73 S.Ct. at 1049. The Court went on to state that “[i]t is the limited function of the civil courts to determine whether the military have given fair consideration to each of these claims.” Id. at 144, 73 S.Ct. at 1050.
The federal courts’ interpretation — particularly this court’s interpretation — of the language in Burns has been anything but clear. Probably a majority of our cases have simply quoted the Burns language and held that no review of a petition for habeas corpus was possible when the defendant’s claims were fully and fairly considered by the military courts. See Watson v. McCotter, 782 F.2d 143, 144 (10th Cir.), cert. denied, 476 U.S. 1184, 106 S.Ct. 2921, 91 L.Ed.2d 549 (1986); King v. Moseley, 430 F.2d 732, 734 (10th Cir.1970); Bennett v. Davis, 267 F.2d 15, 17 (10th Cir.1959); Dickenson v. Davis, 245 F.2d 317, 320 (10th Cir.1957), cert. denied, 355 U.S. 918, 78 S.Ct. 349, 2 L.Ed.2d 278 (1958); Easley v. Hunter, 209 F.2d 483, 486-87 (10th Cir.1953). A few of our cases were more specific and held that we could not review factual disputes if they had been fully and fairly considered by the military courts. See Kennedy v. Commandant, United States Disciplinary Barracks, 377 F.2d 339, 342 (10th Cir.1967); Mendrano v. Smith, 797 F.2d 1538, 1542 n. 6 (10th Cir.1986). Still other of our cases have held that review of constitutional claims in habeas corpus petitions was proper without really saying when and why. See Wallis v. O’Kier, 491 F.2d 1323, 1325 (10th Cir.), cert. denied, 419 U.S. 901, 95 S.Ct. 185, 42 L.Ed.2d 147 (1974); Day v. Davis, 235 F.2d 379, 384 (10th Cir.), cert. denied, 352 U.S. 881, 77 S.Ct. 104, 1 L.Ed.2d 81 (1956). Another of our recent cases held that review was proper when the constitutional claim was both “substantial and largely free of factual questions.” Monk v. Zelez, 901 F.2d 885, 888 (10th Cir.1990) (quoting Mendrano, 797 F.2d at 1542 n. 6). See also Lundy v. Zelez, 908 F.2d 593 (10th Cir.1990).
Apparently because of the confusing state of our cases, the district court looked to a Fifth Circuit case for guidance in determining when to review a claim made in a habeas corpus petition. See Calley v. Callaway, 519 F.2d 184 (5th Cir.1975), cert. denied, 425 U.S. 911, 96 S.Ct. 1505, 47 L.Ed.2d 760 (1976). We agree that the Calley case identifies four factors— also found in our prior cases, although not so clearly expressed — helpful in determining whether review of a military conviction on habeas corpus is appropriate. The four factors from Calley and the Tenth Circuit cases articulating the same principles are:
1. The asserted error must be of substantial constitutional dimension---[See Mendrano, 797 F.2d at 1542 n. 6.]
2. The issue must be one of law rather than of disputed fact already determined by the military tribunals.... [See Mendrano, 797 F.2d at 1542 n. 6.]
3. Military considerations may war[1253]*1253rant different treatment of constitutional claims____ [See Dickenson v. Davis, 245 F.2d 317, 320 (10th Cir.1957) ]
4. The military courts must give adequate consideration to the issues involved and apply proper legal standards. [See King v. Moseley, 430 F.2d 732, 734-35 (10th Cir.1970); Watson v. McCotter, 782 F.2d 143, 145 (10th Cir.1986).]
Calley, 519 F.2d at 199-203. We recognize that these factors still place a large amount of discretion in the hands of the federal courts. Nevertheless, we believe that they provide a concise statement of the factors normally relied on by the federal courts in deciding whether to review military habeas corpus petitions. Applying these four factors to the four claims asserted by defendant, we hold that only the voting procedures claim is subject to our review. We hold that the remaining claims were fully and fairly reviewed by the military courts.
A. Voting Procedures
We affirm the district court’s decision to review defendant’s claim that the voting procedures used at his court-martial violated due process. This claim involves a substantial constitutional issue, that defendant was incarcerated without due process of law. In addition, in its brief the government conceded that this issue was one of law rather than of disputed fact. There is no contention that unique military considerations apply to this issue. Finally, although this issue was raised before the military courts of review, it was summarily affirmed without discussion. This factor alone is not sufficient to justify our review of this issue. See Watson v. McCotter, 782 F.2d 143, 145 (10th Cir.), cert. denied, 476 U.S. 1184, 106 S.Ct. 2921, 91 L.Ed.2d 549 (1986). However, when the military courts’ summary affirmance is considered with the other three factors in Galley, we hold that this claim fulfills the four requirements for our review.
B. Jury Composition
We hold that defendant’s jury composition claim was fully and fairly considered by the military courts. Defendant points to seven court-martial procedures followed in this ease which he claims denied him due process of law in the totality of the circumstances. Three of these procedures involve the voting procedures that we have already agreed to review above. The remaining four claims deal only with the composition of the court-martial. Defendant seeks to apply Supreme Court requirements concerning civilian juries to his court-martial. Defendant’s suggestion has been squarely rejected by the Supreme Court itself.
Petitioner can gain no support from the analogy of trial by jury in the civil courts. The right to trial by jury guaranteed by the Sixth Amendment is not applicable to trials by courts-martial or military commissions. Courts-martial have been composed of officers both before and after the adoption of the Constitution. The constitution of courts-martial, like other matters relating to their organization and administration, is a matter appropriate for congressional action.
Whelchel v. McDonald, 340 U.S. 122, 126—27, 71 S.Ct. 146, 149, 95 L.Ed. 141 (1950) (citations and footnotes omitted).
We have been consistent in refusing to apply the sixth amendment right to a jury trial in the court-martial setting. See Mendrano, 797 F.2d at 1544; King, 430 F.2d at 734; De War v. Hunter, 170 F.2d 993, 997 (10th Cir.1948), cert. denied, 337 U.S. 908, 69 S.Ct. 1048, 93 L.Ed. 1720 (1949) (footnote omitted) (“The right of trial by jury guaranteed by the 6th Amendment to the Constitution of the United States is not applicable in a trial by military court-martial. Hence, decisions respecting the right to trial by one’s peers in civil courts are inapplicable.”). Other federal courts have also refused to apply the constitutional right to a jury trial to court-martial proceedings. See Betonie v. Sizemore, 496 F.2d 1001, 1007 (5th Cir.1974); Daigle v. Warner, 490 F.2d 358, 364 (9th Cir.1974); Stanford v. United States, 413 F.2d 1048, 1049 (5th Cir.1969); Wright v. Markley, 351 F.2d 592, 593 (7th Cir.1965).
Clearly, defendant makes no substantial constitutional claim regarding court-martial [1254]*1254composition under the sixth amendment jury cases. In addition, in light of the Supreme Court’s explicit statement that court-martial composition is a matter for Congress, we hold that defendant makes no substantial constitutional claim that due process was violated. Defendant points to no specific instance in which his court-martial denied him due process rights merely because of its composition. Therefore, we hold that the Court of Military Appeals’ summary affirmance was appropriate on this issue and fulfilled the full and fair consideration requirement. We affirm the district court’s refusal to review the jury composition issue.
C. Speedy Trial
We next hold that defendant’s speedy trial claim was fully and fairly considered by the military courts. Although this claim presents a substantial constitutional issue, we hold that it is not open to our review because it is essentially a factual question and was fully and fairly considered by the military courts. The speedy trial issue was tried on stipulated facts. However, the essential question for the court to answer was whether the reasons given by the government were sufficient to justify the delay in defendant’s trial. This is a factual question, and if we granted review it would require us to merely reevaluate the evidence. Burns clearly prohibits this type of review. “[Wjhen a military decision has dealt fully and fairly with an allegation raised in that application, it is not open to a federal civil court to grant the writ simply to re-evaluate the evidence.” Burns, 346 U.S. at 142, 73 S.Ct. at 1049. This issue was also carefully considered by the Court of Military Review in a lengthy discussion, and it was summarily affirmed by the Court of Military Appeals. We hold that defendant’s speedy trial claim was fully and fairly considered by the military courts, and we affirm the district court’s refusal to review the issue.
D. Expert Testimony
Finally, we hold that defendant’s claim concerning the exclusion of expert testimony was also fully and fairly considered by the military courts. This claim raises a substantial constitutional issue of due process. However, we believe that it was a factual issue fully considered by the military courts. The question of whether the expert testimony would be based on findings generally accepted in the scientific community was a factual question to be determined by weighing the evidence presented at trial. Again, the Burns case does not allow us to reweigh the evidence. The Court of Military Review specifically dealt with this issue in its opinion. Thus, we believe that this issue was fully and fairly considered by the military courts, and we affirm the district court’s refusal to review the issue.
III. Teague v. Lane
The next threshold issue we must face is whether the relief sought by plaintiff would create a new rule in violation of Teague v. Lane, 489 U.S. 288, 109 S.Ct. 1060, 103 L.Ed.2d 334 (1989). A plurality of the Supreme Court created what ironically could be considered a new rule in Teague when it held that federal court habeas corpus review of state court decisions could not create new constitutional rules of criminal procedure. Teague, 109 S.Ct. at 1075. The Teague Court defined a “new rule” as one that “breaks new ground or imposes a new obligation on the States or the Federal Government____ To put it differently, a case announces a new rule if the result was not dictated by precedent existing at the time the defendant’s conviction became final.” Teague, 109 S.Ct. at 1070. Supreme Court interpretation of Teague continues to set a very high standard for holding that a court ruling is not “new.” In Sawyer v. Smith, — U.S. -, 110 S.Ct. 2822, 111 L.Ed.2d 193 (1990), the Court held that prior decisions that inform, or even control or govern, the analysis of a claim do not necessarily compel the rule that the petitioner sought. Id. 110 S.Ct. at 2828. The Court held that in order to create a new rule prior cases must “compel” the rule sought by a petitioner. Id.
[1255]*1255In spite of the high standard set up by the Supreme Court for holding that a requested rule is not a new rule, we are firmly convinced that the relief sought by plaintiff in this case concerning the three-fourths voting requirement for sentencing does not require the creation of a new rule. As we discuss in section V.B., the requirement of three-fourths concurrence in a life sentence — even if mandatory — is “compelled” and “dictated” by prior precedent and statutory law.1 In light of this conclusion, we proceed to the merits of plaintiffs claims on the voting procedures issue.
IV. Standard of Review
The district court’s interpretation of the Constitution, statutes, or regulations is subject to de novo review. In re Ruti-Sweetwater, Inc., 836 F.2d 1263, 1266 (10th Cir.1988). In conducting a de novo review, we make an independent determination of the issues, giving no special weight to the district court’s determination. Ocelot Oil Corp. v. Sparrow Indus., 847 F.2d 1458, 1464 (10th Cir.1988).
V. Court-Martial Voting Procedures
Defendant makes four separate arguments challenging the voting procedures used in this case. Defendant first claims that requiring only two-thirds of the court-martial to vote for conviction violates due process. Second, defendant claims that the court-martial violated due process by failing to require a three-fourths vote to sentence him to life imprisonment. Third, defendant claims that the lack of a three-fourths vote denied him equal protection. Finally, defendant claims that existing Supreme Court civilian jury cases do not allow a conviction by five members of a seven member “jury.”
A. Two-thirds Vote for Conviction
Defendant’s first argument that a two-thirds vote for conviction violates due process is based on a belief that three-fourths of the court-martial must vote to convict for a crime with a mandatory life sentence. Defendant bases his argument on the fact that the Uniform Code of Military Justice requires a three-fourths vote to impose any sentence over ten years. “No person may be sentenced to life imprisonment or to confinement for more than ten years, except by the concurrence of three-fourths of the members present at the time the vote is taken.” 10 U.S.C. § 852(b)(2) (1988). Defendant argues that because his life sentence was mandatory, he was entitled to a three-fourths vote on his conviction.
Although defendant’s suggested requirement might be a sensible solution to a possible statutory inconsistency, we are constrained by the explicit language of the statute. The statute requires only a two-thirds vote to convict for any crime for which the death penalty is not mandatory. “No person may be convicted of any [crime for which the death penalty is not mandatory], except ... by the concurrence of two-thirds of the members present at the time the vote is taken.” 10 U.S.C. § 852(a)(2) (1988).2 Thus, conviction for a crime with a mandatory life sentence requires only a two-thirds vote, regardless of any requirements imposed by the sentencing statute. Sentencing and conviction are separate acts, based on separate facts and issues. “These [conviction and sentencing] provisions of the Code are plain and clear, and set out the number of votes required to convict and to sentence under different subsections. This is appropriate, for findings and sentence are separate functions, a court-martial being unique in that the court members perform both.” United States v. Walker, 7 C.M.A. 669, 23 C.M.R. 133, 137 [1256]*1256(1957). See also Stout v. Hancock, 146 F.2d 741, 744 (4th Cir.), cert. denied, 325 U.S. 850, 65 S.Ct. 1086, 89 L.Ed. 1971 (1944); In re Campo, 71 F.Supp. 543, 545 (S.D.N.Y.1947), aff'd, 165 F.2d 213 (2nd Cir.1947); Hurse v. Caffey, 59 F.Supp. 363, 365 (N.D.Tex.1945).
This court has specifically upheld the two-thirds requirement necessary for conviction on at least two previous occasions. In Mendrano v. Smith, 797 F.2d 1538 (10th Cir.1986), we considered a due process challenge to the two-thirds requirement. “[W]e conclude that the two-thirds rule of Article 52 satisfies the requirements of due process in this case.” Mendrano, 797 F.2d at 1544. In an earlier case we concluded that where “the charge is murder and the sentence is life imprisonment ... it is sufficient if two-thirds or more of the members of the court concur in the conviction____” Anderson v. Hunter, 177 F.2d 770, 771 (10th Cir.1949).
We recognize the inconsistency created by a statute that requires a two-thirds vote to convict for a crime carrying a mandatory life sentence and that also requires a three-fourths vote to sentence an individual to life imprisonment. Indeed, we believe that a sensible statutory scheme would require the same percentage vote for conviction and sentence where the sentence is mandatory.3 Unfortunately, we do not have the power to rewrite the statute. Only Congress can change the existing voting requirements.
Merely because we might believe that consistent percentages would be desirable does not clothe us with power to change the statute to make them correspond. While criminal statutes covering the same general subject should be construed so as to make them harmonize, courts are not legislative bodies and that canon of statutory construction cannot be employed to construe an act contrary to a clearly expressed Congressional intent.
Walker, 23 C.M.R. at 138. Thus, the conviction by the court-martial requiring only a two-thirds concurrence is affirmed. Such a vote does not violate due process.
B. Three-fourths Vote for Sentencing
Defendant next claims that no three-fourths vote was taken on his sentence and that the statute requires a three-fourths vote, even on mandatory sentences. The government’s response that a three-fourths vote for a mandatory sentence is unnecessary appears logical at first glance. However, when we consider that the military court could refuse to impose any sentence if the required number of votes are not cast, we then understand why a separate vote is necessary for sentencing even in mandatory sentence cases.
Section 852(b)(2) contains a blanket requirement of a three-fourths vote for any sentence over ten years. “No person may be sentenced to life imprisonment or to confinement for more than ten years, except by the concurrence of three-fourths of the members present at the time the vote is taken.” 10 U.S.C. § 852(b)(2) (1988). There is no exception to section 852(b)(2) for mandatory sentences. Nevertheless, any ambiguity in the Uniform Code of Military Justice created by the Code’s requirement of a mandatory life sentence for defendant must be resolved in favor of the accused. See Jackson v. Taylor, 353 U.S. 569, 576, 77 S.Ct. 1027, 1031, 1 L.Ed.2d 1045 (1957). In this case, we must resolve any ambiguity in favor of the accused by requiring a three-fourths vote on even a mandatory sentence.
Strong additional authority for requiring a three-fourths vote on a mandatory sentence, and a source helpful in resolving any ambiguity in the Code, is the 1969 Manual for Courts-Martial in effect during defendant’s court-martial. The 1969 Manual for Courts-Martial specifically required a vote on sentencing, even in cases with mandatory sentences.
It is the duty of each member to vote for a proper sentence for the offense or offenses of which the accused has been found guilty, without regard to his opin[1257]*1257ion or vote as to the guilt or innocence of the accused. Any sentence, even in a case where the punishment is mandatory, must have the concurrence of the required number of members____ No person may be sentenced to life imprisonment or to confinement for more than ten years, except by the concurrence of three-fourths of the members present at the time the vote is taken.
Manual for Courts-Martial, United States, 1969, it 76b(2) at 13-14 (Rev. ed. 1969) (emphasis added).4 The Manual for Courts-Martial is written by the President of the United States under authority granted to the President by the Uniform Code of Military Justice.
Pretrial, trial, and post-trial procedures, including modes of proof, for cases arising under this chapter triable in courts-martial, military commissions and other military tribunals, and procedures for courts of inquiry, may be prescribed by the President by regulations which shall, so far as he considers practicable, apply the principles of law and the rules of evidence generally recognized in the trial of criminal cases in the United States district courts, but which may not be contrary to or inconsistent with this chapter.
10 U.S.C. § 836(a) (1988). Thus, the President may prescribe rules as long as they are not inconsistent with the Uniform Code. The rule promulgated in Manual paragraph 76b(2) is not inconsistent with the Code. At worst the rule clarifies an existing ambiguity.
We must emphasize that the Manual for Courts-Martial has the force of statutory law. This court has affirmed a district court within our circuit that held the Manual for Courts-Martial to have the force of statutory law. “Congress, by enacting Article 36, UCMJ (10 U.S.C.A. § 836), granted to the President the power to prescribe rules for the military courts. Pursuant to this authority, the President by executive order prescribed the Manual for Courts-Martial (MCM) which has the force of statutory law.” Levy v. Dillon, 286 F.Supp. 593, 596 (D.Kan.1968), aff'd, 415 F.2d 1263 (10th Cir.1969) (emphasis added). See also Harper v. Jones, 195 F.2d 705, 707 (10th Cir.1952) (“The President is authorized to make and publish regulations for the government of the army which shall be enforced and obeyed until altered or revoked by the same authority.”); Billings v. Truesdell, 321 U.S. 542, 551, 64 S.Ct. 737, 743, 88 L.Ed. 917 (1944) (War Department regulations have the force of law). The Manual — which has the force of law — specifically requires a three-fourths vote for a life sentence, even in cases of mandatory sentences. Thus, we now hold that a military court would be “compelled” by the Manual alone to require a three-fourths majority to sentence defendant to life imprisonment.
We note that our prior holding that the Manual has the force of law agrees with the holdings of the military courts themselves. As far back as 1951 the Court of Military Appeals held that “[f]or the purposes of this case we can and do hold that the act of Congress (the Code) and the act of the Executive (the Manual) are on the same level and that the ordinary rules of statutory construction apply.” United States v. Lucas, 1 U.S.C.M.A. 19, 1 C.M.R. 19, 22 (1951). Subsequent military court cases have consistently upheld the Manual as having the force of law.
Similar to its grant of authority to the Supreme Court to prescribe rules of practice and procedure in Federal civilian cases, which have the force of statutory law, the Congress, by Article 36 of the Code, supra, 10 USC § 836, granted to the President the parallel power to make such rules for the military courts.
Levy v. Resor, 17 U.S.C.M.A. 135, 37 C.M.R. 399, 403 (1967).
[1258]*1258Article 36(a), UCMJ, 10 U.S.C. § 836(a), empowers the President to prescribe rules of procedure for cases before courts-martial. Pursuant thereto he has promulgated the Manual. His authority-in that regard is limited only by the requirement that the rules be consistent with the Constitution or other laws---A valid Manual provision, therefore, has the force and effect of law.
United States v. Kelson, 3 M.J. 139, 140-41 (C.M.A.1977).
The [Manual for Courts-Martial] was promulgated by the President of the United States in Executive Order 12473 pursuant to the authority vested in him by the U.S. Constitution and Article 36 of the UCMJ (10 U.S.C. § 836). Executive rules falling properly within the valid delegation of power by Congress have the force and effect of law.
United States v. Daniels, 20 M.J. 648, 649 (N.M.C.M.R.1985) (footnotes omitted). Again we point out that a Manual provision having the force and effect of law was binding on the military courts in this case.
The government claims that this issue is settled by our Mendrano opinion and the published opinions of every other court that has addressed this issue. We believe that the government misreads these cases. This is an area in which the majority of circuit cases are from this court. Although our cases clearly uphold the two-thirds requirement for convictions, our cases do not create any exception from the three-fourths requirement for sentencing.
In Anderson we first pointed out that the record indicated there was a three-fourths vote for both conviction and sentence. We then went on to state: “In a case [in which the charge is murder and the sentence is life imprisonment] it is sufficient if two-thirds or more of the members of the court concur in the conviction and three-fourths or more concur in the sentence.” Anderson, 177 F.2d at 771. In another case we held: “[W]hen the charge is [rape] and the sentence life imprisonment it is sufficient if two-thirds or more concur in the conviction and three-fourths or more in the sentence.” McKinney v. Warden, 273 F.2d 643, 644 (10th Cir.1959), cert. denied, 363 U.S. 816, 80 S.Ct. 1253, 4 L.Ed.2d 1156 (1960). These cases at least imply support for the three-fourths vote requirement in mandatory sentence cases.
In the Mendrano case, relied on heavily by the government, we simply held that the two-thirds conviction rule did not violate due process. Mendrano, 797 F.2d at 1544-47. There is no discussion on mandatory sentences or the three-fourths voting requirement. Thus, Mendrano does not provide the basis for a holding that an exception exists to the three-fourths voting requirement for sentencing in cases carrying a mandatory sentence.
Two district court cases support our pri- or holdings. In Brown v. Hiatt, 81 F.Supp. 647 (N.D.Ga.1948), the court noted in dicta:
[W]hile the death penalty might have been imposed, it was not mandatory and ... therefore the vote of “three-fourths of all of the members present at the time the vote is taken” concurring was sufficient to support the sentence, although the finding of guilty was by a vote of two-thirds of the members present.
Brown, 81 F.Supp. at 650. Another district court noted:
The vote on conviction and the vote for the proper sentence for the offense of which the accused had been found guilty by the court are separate steps in the proceeding before the court-martial. A vote on a proper sentence for the offense is entirely distinct from a vote on the charges. There is no inconsistency in requiring a two-thirds vote for conviction and a three-fourths vote for sentencing.
In re Campo, 71 F.Supp. 543, 545 (S.D.N.Y.1947).
We acknowledge that dicta in two other non-binding cases could be construed to hold that no three-fourths vote on sentencing was required in mandatory sentence cases. See Stout v. Hancock, 146 F.2d 741 (4th Cir.1944); Hurse v. Caffey, 59 F.Supp. 363 (N.D.Tex.1945). However, the facts of these cases both include sentencing by at least a three-fourths vote. In addition, their holdings do not concern the three-fourths sentencing vote issue. Neverthe[1259]*1259less, to the extent these cases stand for the proposition that no three-fourths vote is necessary on a mandatory life sentence, we simply disagree.
The only other circuit case to discuss this issue is Stout v. Hancock, 146 F.2d 741 (4th Cir.1944). The Stout case contains a facially troubling statement.
[A]fter conviction has been voted in a prosecution for murder or rape, the only punishments permissible under the law are death and life imprisonment. The vote on punishment, therefore, is but a choice between these two; and, unless there is a unanimous vote in favor of the death penalty, life imprisonment necessarily follows.
Stout, 146 F.2d at 744. However, this statement is mere dicta. The holding in Stout was only that a unanimous vote for conviction is not required unless the death penalty is a mandatory punishment. Id. In fact, the Stout court went on to note the inconsistency of the statutes and the court’s lack of power to fix the problem.
Nor do we feel impelled to put a different interpretation upon article 43 because of the possibility that in voting punishment under article 92 the court-martial, while failing to vote unanimously for death, might fail to give a three-fourths vote for life imprisonment____ If there is any real difficulty in sentencing under that article, the matter is one which addresses itself to Congress and not to the courts.
Id. In addition, the Stout court stated that the conviction was “by more than two-thirds and sentence by three-fourths of the members of the court-martial, which is all that the law requires.” Id. at 745. Therefore, although the Stout case contains some troubling language, we believe that the remaining language in the case and its underlying facts make it weak authority for the proposition that no three-fourths vote on sentencing is required in a mandatory sentence ease.
A district court adopted the troubling language of the Stout court in a case the year after Stout. “[AJfter conviction has been voted in a prosecution for murder, the only punishment permissible under the law is death or imprisonment. The vote on imprisonment, therefore, is but a choice between those two; and unless there is an unanimous vote in favor of the death penalty, imprisonment necessarily follows.” Hurse v. Caffey, 59 F.Supp. 363, 365 (N.D. Tex.1945) (emphasis in original). However, this statement is at least partially dicta since the facts of the case included a two-thirds vote for conviction — under an old statute allowing a two-thirds vote in cases involving mandatory death sentences — and later a unanimous vote for the death penalty. In addition, the holding of the case was simply that a two-thirds vote for conviction when the death penalty is imposed is proper under the old statute. We believe that Hurse is very weak authority for the proposition that no three-fourths vote on sentencing is necessary in cases involving mandatory sentences.
Although the military courts have been less clear, they also appear to have generally interpreted the statute to require a three-fourths vote on sentencing. For example, in a case holding that only a two-thirds majority must vote to convict for a crime involving a mandatory life sentence, the court quoted the troubling language of Stout, but also quoted the language supportive of our disposition of the case from Campo. See United States v. Morphis, 7 U.S.C.M.A. 748, 23 C.M.R. 212, 217 (1957).
In United States v. Walker, 7 U.S.C.M.A. 669, 23 C.M.R. 133 (1957), the court quoted the requirements for voting on guilt and sentence in the Code. The court then stated that “[tjhese provisions of the Code are plain and clear, and set out the number of votes required to convict and to sentence under different subsections. This is appropriate, for findings and sentence are separate functions____” Id. at 137. The Walker court then went on to quote the precise language of the Manual for Courts-Martial that states that even mandatory sentences must have the concurrence of the required number of court-martial members. Id. Although the holding in Walker was that only two-thirds were required to vote for conviction, the court certainly intimated [1260]*1260that three-fourths would be required to sentence, even on a mandatory sentence. In another case, the Court of Military Appeals actually questioned the propriety of a court-martial which did not require a three-fourths vote on a mandatory life sentence.
It is open to question whether the procedure followed at either hearing was proper. Long ago, this Court decided that the President, through the Manual, “may place an additional burden upon the .,. [military judge] and the president of courts-martial not expressly imposed by the Code, but [which] ... is not prohibited by the Code.” United States v. Lucas, 1 U.S.C.M.A. 19, 22, 1 C.M.R. 19, 22 (1951). It seems possible, though, that the voting requirement in paragraph 76b(2) of the 1969 Manual might on occasion conflict with the Code’s mandatory life imprisonment for felony-murder— e.g., if three-fourths of the members refused to vote for a sentence which included life imprisonment.
In any event, no issue in this connection was raised by defense on appeal, so we need not address this question any further.
United States v. Garrett, 24 M.J. 413, 419 (C.M.A.1987).
A recent Court of Military Appeals case contains some language that on its face might be interpreted to state a rule that no three-fourths vote is required to sentence in a mandatory sentence case. In United States v. Shroeder, 27 M.J. 87 (C.M.A.1988), the court identified the first issue for review:
Whether the military judge erred by failing to instruct the members, as required by R.C.M. 1006(d)(5), that a sentence which includes confinement for life may only be adjudged if at least three-fourths of the members present vote for that sentence.
Id. at 88. The court then stated that it decided this issue against appellant. Id. However, in reality the court’s formulation of the issue misstates the actual question before the court. On the same page as the formulation of the issues the court states that the military judge “further instructed [the court-martial members] that the sentence in its entirety had to receive the votes of three-fourths of the members — five out of six.” Id. Since the military judge actually instructed the court-martial that a three-fourths vote was required, the court’s formulation of the issue as asking whether the judge’s failure to so instruct was in error is not a correct statement of the issue in the case. The actual issue before the court is identified by its holding. “[W]e think it was entirely appropriate for the military judge to instruct — as required by R.C.M. 1005(e)(1) — that, because Shroeder had been found guilty of felony murder, any sentence adjudged by the court members must include confinement for life.” Id. at 90. The court was addressing whether the military judge could instruct the court-martial that their sentence must include life imprisonment, not whether the sentence must be supported by a three-fourths vote. In fact, the Shroeder court’s opinion never questioned the military judge’s instruction requiring the three-fourths vote. In addition, the court continually cited with approval its prior Walker opinion that at least impliedly supported the three-fourths vote. Therefore, we conclude that, although the military courts have not been entirely clear on this issue, they seem to support our interpretation of the current statutory structure requiring a three-fourths vote for a mandatory sentence.
Thus, we hold that a three-fourths vote is required on all sentences of life imprisonment, even if the sentence is mandatory. This holding is supported by the Manual for Courts-Martial. The Manual obviously contemplates just such a vote and provides for a remedy if three-fourths do not vote for a mandatory life sentence. After discussing the requirement that a concurrence of the required number of votes is required even for mandatory sentences, the Manual states: “If the required proportion of the court members are conscientiously unable to reach agreement on a sentence, this fact shall be announced in open session and a mistrial declared. The convening authority may thereafter direct a rehearing on the sentence before a different court.” Man[1261]*1261ual for Courts-Martial, United States, 1969, ¶ 76(b)(2) at 13-14 (Rev. ed. 1969) (emphasis added). We believe that the use of the word “may” indicates that the convening authority had discretion whether to order rehearing on the sentence. This means that the convening authority also had the discretion to order no punishment as the sentence. This implicit interpretation is made clear by the clarifying language of the current manual. “If the required number of members do not agree on a sentence after a reasonable effort to do so, a mistrial may be declared as to the sentence and the case shall be returned to the convening authority, who may order a rehearing on sentence only or order that a sentence of no punishment be imposed.” Manual for Courts-Martial, United States, 1984, R.C.M. 1006(d)(6) at 11-154 (1984). See also United States v. Miller, 10 U.S.C.M.A. 296, 27 C.M.R. 370 (1959).
The military judge in this case did not require a three-fourths vote on punishment. The judge gave the following instructions:
The voting on the part relating to confinement at hard labor for life or death will follow the following procedures: When the Court has completed its discussion, the members shall vote first on the sentence of confinement at hard labor for life, that is, the less severe of the two punishments. The Court will vote by secret ballot as to the sentence of confinement at hard labor for life____ If the ballot results in one or more votes for a sentence to confinement at hard labor for life, then there will be no need to go forward and vote on a sentence of death, since a sentence of death requires a unanimous vote of the members. The logic is as follows:
If one person votes for confinement at hard labor for life, obviously, there cannot be a unanimous vote on death. So, if you have one or more votes for confinement at hard labor for life, then you need not go forward and vote for the sentence of death, that is, vote on the sentence of death. In other words, if the ballot has resulted in a sentence of confinement at hard labor for life, and if there is one or more votes for sentence of confinement at hard labor for life — if the ballot results in no vote for a sentence of confinement at hard labor for life, then the members proceed to vote on a sentence of death. That is, if there are no votes for a sentence to confinement for life, then you can go on and consider the sentence of death and vote thereon.
Record, vol. 4, at 837-38. The judge’s instructions did not require the court to reach a three-fourths majority vote in order to impose life imprisonment. We hold that these instructions do not fulfill the requirement of a three-fourths vote on a sentence of over ten years imprisonment contained in 10 U.S.C. § 852(b)(2) (1988).
In the context of this case, we hold that the court-martial’s failure to follow the statutory requirements was a violation of defendant’s right to due process. It is clear that military courts-martial are not held to the exact due process requirements created for civil courts. “[W]hat constitutes due process in a trial by a military tribunal is gauged by the principles of military law exacted by the Congress____” De War v. Hunter, 170 F.2d 993, 997 (10th Cir.1948), cert. denied, 337 U.S. 908, 69 S.Ct. 1048, 93 L.Ed. 1720 (1949) (citing Reaves v. Ainsworth, 219 U.S. 296, 31 S.Ct. 230, 55 L.Ed. 225 (1911); French v. Weeks, 259 U.S. 326, 42 S.Ct. 505, 66 L.Ed. 965 (1922)). Thus, the Supreme Court’s cases striking down a unanimous jury of only five persons, Ballew v. Georgia, 435 U.S. 223, 98 S.Ct. 1029, 55 L.Ed.2d 234 (1978), and holding that a six-person jury must be unanimous, Burch v. Louisiana, 441 U.S. 130, 99 S.Ct. 1623, 60 L.Ed.2d 96 (1979), are not applicable to military courts-martial. However, the lower due process rights accorded to military defendants are the exception to the general rules. As such, we hold the military courts to the specific statutory requirements created by Congress and the President as an exception to general due process jurisprudence. Because the military court failed to follow “the principles of military law enacted by Congress,” De War, 170 F.2d at 997, we hold that defendant’s due process rights were violat[1262]*1262ed in this case. There can be no question that the congressional standard and the authorized regulations clearly mandated at the time of defendant’s sentence the results we set out here. Therefore, we reverse the district court’s holding on this issue and order the case remanded to the convening authority to either order rehearing on sentencing or to order no punishment entered consistent with the provisions of Rule for Court Martial 1006(d)(6) of the 1984 Manual for Courts-Martial.
C. Equal Protection
Our resolution of the statutory interpretation issue makes it unnecessary to reach defendant’s third argument concerning equal protection.
D. Supreme Court Jury Voting Requirements
Finally, defendant argues that a vote of conviction from five out of seven members of a court-martial violates the Supreme Court’s cases concerning jury voting requirements. This claim is controlled by our prior Mendrano opinion. We refuse to disturb our holding in Mendrano that a two-thirds vote for conviction by a military court-martial is constitutional. See Mendrano, 797 F.2d at 1542-47. We fully considered the Supreme Court’s civilian jury cases in reaching our holding in Mendrano. We see no reason to reconsider the issue now.
VI. Conclusion
We hold that the writ of habeas corpus should issue based on the court-martial’s failure to require a three-fourths vote in favor of the life sentence imposed. Therefore, we REVERSE and REMAND the voting procedure issue to the district court for further proceedings consistent with this opinion. We AFFIRM the district court’s refusal to review the three remaining claims under the petition for habeas corpus.
REVERSED and REMANDED in part; AFFIRMED in part.