Reiber, C.J.
¶ 1. Husband appeals from the Washington Family Court’s enforcement order increasing the percentage of his military retirement benefits going to wife under the property division order that was finalized when the parties divorced. We affirm in part and reverse in part.
¶2. Husband is a career military man who spent more than twenty years in the United States Marine Corps. On July 1, 2005, husband, who was in his forties at the time, took a forced retirement from the military, and he is now collecting retirement benefits. In the initial divorce proceeding, which began before husband’s retirement but was not decided until October 14, 2005, the trial court treated husband’s expected monthly retirement benefits as property and included it in the final property division. Specifically, the court granted wife “35% of the marital portion of the retirement plan,” which, as the court later clarified, translated to 19.81% of husband’s monthly retirement benefits. Husband appealed that determination to this Court, arguing (among other things) that his military retirement benefits should not have been subject to property division. We issued an unpublished entry order [57]*57affirming the trial court’s original property division. Youngbluth v. Youngbluth (Youngbluth I), No. 2006-083, 2007 WL 5318595, at *3 (Mar. Term 2007) (unpub. mem.).
¶ 3. After husband retired from military service, and after the October 14, 2005 final divorce decree was issued, husband applied for disability benefits from the United States Department of Veterans Affairs (VA). According to husband, this was a routine part of the process of filling out the retirement paperwork. Husband’s disability application listed numerous potential disabilities, most of which were denied by the VA. On April 3, 2006, the VA granted husband a 30% disability rating. This meant that a significant portion of husband’s taxable retirement benefits would be forfeited and replaced dollar-for-dollar by tax-exempt and garnishment-exempt disability benefits. As a result, wife was now receiving 19.81% of a smaller retirement payment.
¶ 4. Wife was upset with what she viewed as husband’s unilateral modification of the final property division. Meanwhile, wife was having trouble receiving any payments at all from the federal Defense Finance and Accounting Service (DFAS). Wife had submitted paperwork to DFAS to receive direct payments of her portion of husband’s monthly retirement benefits, but DFAS found the paperwork unacceptable because the trial court’s original order referred to 35% of an undefined “marital portion” of husband’s retirement benefits. Although this clearly translated to 19.81% of the monthly retirement benefits, the original property division order did not mention that number and therefore did not meet the strict requirements for allowing wife to receive direct payments from DFAS.
¶ 5. Wife filed various motions with the trial court asking the court to grant two modifications to the original property division order: (1) wife wanted the trial court to define the exact percentage of husband’s monthly retirement benefits that husband had to pay to wife, so that the order would meet the requirements for receiving direct payments from DFAS; and (2) wife wanted the court to give her a larger portion of husband’s retirement benefits than the 19.81% that was granted to wife in the original property division order, since by now husband had sheltered some of his retirement benefits when he received a 30% disability rating from the VA. Wife labeled the latter request as a “motion to amend” the original property division order, since, rather than asking for the 19.81% that was provided to her under the original property [58]*58division order, wife was now requesting that the court grant her 22.4% of husband’s military retirement benefits. Despite the labeling of wife’s request as a “motion to amend,” the trial court treated this request as asking for enforcement, rather than modification, of the original order. The court agreed with wife and changed the percentage from 19.81% to 22.4%, based upon expert testimony that 22.4% of the smaller number would equate to the roughly $700 monthly payment that the trial court had in mind when it decided the initial allocation.
¶ 6. Husband raises two main arguments on appeal. First, husband argues that under Vermont law the trial court cannot grant wife any portion of husband’s retirement benefits. Second, husband argues that even if the court is allowed to grant wife a portion of husband’s retirement benefits, the court erred in changing that portion from 19.81% to 22.4% in an enforcement proceeding.1
¶ 7. Husband’s first argument merits little discussion; we have already rejected in an earlier proceeding the claim that Vermont law precludes trial courts from granting wife a portion of husband’s retirement benefits. See Youngbluth I, 2007 WL 5318595, at *3. Husband raised this same argument when he appealed the trial court’s initial property division order, and we rejected it for two reasons. Id. First, we held that husband failed to properly preserve the issue before the trial court since he raised it for the first time on appeal. Id. Second, we held that federal law allows the division of disposable retirement benefits, id. (citing 10 U.S.C. § 1408), and “under Vermont law, pension [59]*59rights acquired during the course of a marriage are subject to equitable distribution,” id. (citing Milligan v. Milligan, 158 Vt. 436, 439, 613 A.2d 1281, 1283 (1992)). Although our ruling in Youngbluth I was an unpublished decision without precedential value for other cases, it was also a final judgment for purposes of settling the particular matters disputed between the parties in that particular case. Thus, the trial court was correct in its ruling that husband cannot now collaterally attack the original property division order that we affirmed in Youngbluth I. See, e.g., Hagen v. Hagen, 282 S.W.3d 899, 905 (Tex. 2009) (holding that “divorce judgments are not vulnerable to collateral attack” even when the “final judgment may be erroneous” (quotation omitted)). We therefore hold that in this particular case husband cannot challenge the original property division awarding wife 19.81% of husband’s disposable retirement benefits.
¶ 8. While the finality of the original property division order works against husband’s first argument, the principle of finality is one reason why we agree with husband’s second argument and hold that wife can receive only 19.81% of husband’s disposable retirement benefits. In the recent enforcement order, the trial court increased that number to 22.4% based on the court’s interpretation of the original property division order. Unlike situations where our review of a trial court order is limited to determining whether there was an abuse of discretion, the proper interpretation of a previous court order “is strictly a question of law that we must determine independently.” Sachs v. Sachs, 163 Vt. 498, 501, 659 A.2d 678, 679 (1995); accord Dartmouth Sav. Bank v. F.O.S. Assocs., 145 Vt. 62, 66, 486 A.2d 623, 625 (1984) (“[T]he legal effect of a written instrument is a matter of law determinable at the appellate level.”). We therefore do not grant any deference to the trial court’s determination that the original property division order intended to provide wife with a larger percentage of husband’s disposable retirement benefits.
¶ 9. Further, in our review of the original property division order, we must address husband’s argument that federal law preempts state courts from granting wife an interest in husband’s disability benefits. The issue of federal preemption is a purely legal question that we review de novo. Cf., e.g., Meyncke v. Meyncke, 2009 VT 84, ¶ 6, 186 Vt. 571, 980 A.2d 799 (mem.) (holding that the percentage of wages that can be withheld presents a pure question of law that is reviewed de novo). In our [60]*60de novo review of these issues, we hold that, under the plain language of the original property division order and under settled law that state courts cannot grant a former spouse an interest in a military servicemember’s disability benefits, the original property division order does not allow wife to now receive a greater percentage of husband’s disposable retirement benefits.
¶ 10. Although wife’s original motion was entitled a motion for modification, the trial court seemed to recognize that it was without power to modify the original property division order, and the court referred to its decision as addressing “enforcement motions” that have “only to do with just execution of the judgment already ordered, not the legitimacy of that judgment in the first instance.” To reach this conclusion, the trial court had to treat wife’s motions as requesting enforcement, rather than modification, because Vermont places great emphasis on the finality of property divisions: ‘Vermont law is clear that the court cannot modify the property disposition aspects of a divorce decree absent circumstances, such as fraud or coercion, that would warrant relief from a judgment generally.” Boisselle v. Boisselle, 162 Vt. 240, 242, 648 A.2d 388, 389 (1994); see generally V.R.C.P. 60(b) (listing the circumstances in which a court can grant relief from judgment). The trial court never found that any fraud or coercion occurred here or that there were any other circumstances that would meet wife’s burden for showing that she should be granted relief from the original property division order. Cf. Pill v. Pill, 154 Vt. 455, 459, 578 A.2d 642, 644 (1990) (rejecting the trial court’s statement that it was “not really changing” the original custody order and holding that the court did in fact change the original order and that this change was impermissible without first making the threshold findings necessary for such a change). Further, we need not reach the issue of the appropriateness of a Rule 60(b) modification of the original order because wife does not make that argument on appeal. See R. Brown & Sons, Inc. v. Int’l Harvester Corp., 142 Vt. 140, 142, 453 A.2d 83, 84 (1982) (claims not briefed on appeal are waived). To the contrary, on appeal wife argues that the trial court’s order was merely one of enforcement. We therefore leave for another day the question of whether a military servicemember’s actions shifting retirement benefits to disability benefits can ever trigger relief from judgment under Rule 60(b). Our decision today applies only to situations where a trial court uses an enforcement proceeding to adjust a former spouse’s [61]*61percentage of a military servicemember’s disposable retirement benefits.
¶ 11. Given that this was an enforcement proceeding, we must “determine independently” what the original property division order granted wife. Sachs, 163 Vt. at 501, 659 A.2d at 679. Wife argues, and the trial court held, that the original property division order intended to grant wife a consistent payment of roughly $700 per month from husband’s retirement benefits, regardless of any future actions taken by husband. According to wife, when husband waived a portion of his retirement benefits to take disability benefits, he became obligated to provide wife with an offset payment to ensure that wife continued to receive the same amount of money. The trial court agreed and changed the original property division order to grant wife 22.4% of husband’s disposable retirement benefits, thereby ensuring — at least for the time being — that wife would continue to receive roughly $700 per month. This was error. The original property division order granted wife 19.81% of husband’s “retirement plan,” which gave wife an interest only in husband’s disposable retirement benefits, not in his disability benefits.
¶ 12. To understand why we must interpret the trial court’s reference to husband’s “retirement plan” as referring only to husband’s disposable retirement benefits, it is helpful to recount the history of state trial courts’ authority to treat military retirement benefits and disability benefits as community property. The Supremacy Clause of the United States Constitution proclaims federal law to be “the supreme Law of the Land.” Art. VI, cl. 2. Consequently, federal law can preempt state law whenever Congress explicitly states that it is preempting state law or implicitly preempts state law by occupying an entire field of regulation or passing laws that conflict with state law. Mich. Canners & Freezers Ass’n v. Agric. Mktg. & Bargaining Bd., 467 U.S. 461, 469 (1984). In 1981, the United States Supreme Court held that federal law prevented state courts from treating any military retirement benefits as community property. McCarty v. McCarty, 453 U.S. 210, 223 (1981), superseded by statute, 10 U.S.C. § 1408. According to the McCarty Court, Congress intended all military retirement benefits to go directly to military servicemembers and not to their former spouses. Id. at 228. The following year, Congress directly responded to McCarty by passing the Uniformed Services Former Spouses’ Protection Act [62]*62(USFSPA), which authorized state courts to treat disposable retirement benefits as community property, 10 U.S.C. § 1408(c)(1), but which also specifically exempted disability benefits from the definition of disposable retirement benefits, id. § 1408(a)(4)(B). The Supreme Court interpreted these provisions of the USFSPA in Mansell v. Mansell, 490 U.S. 581 (1989). The Mansell Court noted that although federal law rarely displaces state law in domestic relations matters, this was “one of those rare instances” where state law was preempted. Id. at 587. The Mansell Court then held that the McCarty decision “completely pre-empted the application of state community property law to military retirement pay,” and the states therefore needed “an affirmative grant of authority . . . to treat military retirement pay as community property.” Id. at 588. The Court concluded that the USFSPA provided this grant of authority to states with respect to disposable retirement benefits, but not with respect to disability benefits — the Court explicitly held that the state courts are without power “to treat as property divisible upon divorce military retirement pay that has been waived to receive veterans’ disability benefits.” Id. at 595.
¶ 13. Even before Mansell, this Court specifically stated that although disability benefits can be considered in determining something such as a party’s ability to pay alimony, the USFSPA still stands for the proposition that “disability benefits received in lieu of retirement benefits are not subject to division.” Repash v. Repash, 148 Vt. 70, 74, 528 A.2d 744, 746 (1987) (interpreting 10 U.S.C. § 1408). Even wife concedes in her brief that VA disability benefits are not subject to garnishment or attachment in a property distribution relating to divorce.
¶ 14. It is in this light that we must interpret the trial court’s original property division order, which refers to 19.81% of husband’s “retirement pay.” Given that Mansell held that state courts are without power to divide disability benefits in a property division order, we agree with those courts that have held that in this type of situation the trial court’s order cannot be read to have granted wife an interest in husband’s disability benefits. See, e.g., Morgan v. Morgan, 249 S.W.3d 226, 231-32 (Mo. Ct. App. 2008). The Morgan court explains the significance of Mansell as follows:
Regardless of the wording of the dissolution judgment, Mansell allows only disposable retired pay to be considered as marital property. Total retired pay amounts that [63]*63do not fit into the category of disposable retired pay cannot be divided in a dissolution judgment. This includes both disability benefits and amounts waived to receive disability benefits. Therefore, the omission of the word “disposable” from the original dissolution judgment is immaterial. The dissolution court could not have awarded [the former spouse] a fraction of [the military servicemember’s] total retired pay.
Id. Thus, even if the original property division order had explicitly granted wife an interest in husband’s total retirement benefits, federal law would require us to read the order as applying only to disposable retirement benefits. See Gallegos v. Gallegos, 788 S.W.2d 158, 160 (Tex. App. 1990) (citing Mansell, 490 U.S. 581). In Gallegos, the original property division order granted the former spouse 21.5% of the military servicemember’s “gross present and future military retirement pay,” which the trial court specifically defined as including over $300 in disability benefits that were received in lieu of retirement benefits. Id. (emphasis added). On appeal, the Gallegos court struck that part of the trial court’s order and held that federal law precluded state courts from granting the former spouse any portion of the military servicemember’s disability benefits. Id. (citing Mansell, 490 U.S. 581). The Gallegos court correctly noted that under Mansell, “state courts do not have the power to treat military retirement pay that has been waived in order to receive V.A. Disability benefits as property divisible upon divorce.” Id. Thus, here, where the trial court’s original property division order gave wife a specific portion of husband’s “retirement plan,” the trial court could not have intended to award wife any percentage of disability benefits that husband might earn in the future. We therefore must interpret the trial court’s reference to “retirement pay” as including only husband’s disposable retirement benefits, which under federal law does not include disability benefits received in lieu of retirement benefits.
¶ 15. Wife argues, and the trial court held, that it would be unjust to allow a military servicemember to “unilaterally” modify a judgment by reclassifying the form in which he receives payments. State courts are split on this issue.2 One likely reason [64]*64for this split is that Mansell often leads to seemingly unfair results that state courts are understandably loathe to accept. In Mansell, Justice O’Connor noted in her dissenting opinion that the “harsh reality” of the majority’s holding was “that former spouses . . . can, without their consent, be denied a fair share of their ex-spouse’s military retirement pay simply because [the military servicemember] elects to increase his after-tax income by converting a portion of that pay into disability benefits.” 490 U.S. at 595. The majority in Mansell did not dispute this point. Id. at 594. Rather, the Court explicitly recognized that exempting disability benefits from divorce proceedings could lead to spouses like wife receiving a less-than-fair share of property:
We realize that reading the [USFSPA] literally may inflict economic harm on many former spouses. But we decline to misread the statute in order to reach a sympathetic result when such a reading requires us to do violence to the plain language of the statute and to ignore much of the legislative history. Congress chose the language that requires us to decide as we do, and Congress is free to change it.
Id.; see also id. at 592 (noting that when Congress defined disposable retirement benefits as excluding disability benefits, Congress made the “decision to shelter from community property law that portion of military retirement pay waived to receive veterans’ disability payments”). Given this “harsh reality,” id. at 595 (O’Connor, J., dissenting), it is not surprising that “Mansell . . . [has] led many state courts to look for creative solutions to prevent a former spouse from losing his or her interest in the military retirement as the result of unilateral action on the part of the military spouse.” In re Marriage of Smith, 56 Cal. Rptr. 3d 341, 345 (Ct. App. 2007).
[65]*65¶ 16. Rather than joining those courts that have found “creative solutions” around Mansell, we recognize that, regardless of whether we agree or disagree with it, a decision by the United States Supreme Court on a matter of federal law “is binding upon the state courts.” Chesapeake & O. Ry. v. Martin, 283 U.S. 209, 221 (1931). Other courts have similarly noted that Mansell must be followed, even when it leads to seemingly unfair results. See, e.g., Wallace v. Fuller, 832 S.W.2d 714, 718-19 (Tex. App. 1992). In Wallace, the trial court had partitioned a military servicemember’s disability benefits, and the state appellate court “reluctantly” overturned the decision. Id. at 714. The Wallace court noted that it “join[ed] the Mansell dissent in decrying a decision that permits Wallace to enjoy one hundred percent of the military benefits accumulated during marriage to the total exclusion of his former spouse’s interest.” Id. at 718. The court criticized Mansell on a number of grounds, including the fact that it created a “windfall” for military servicemembers. Id. at 719. Nevertheless, the court recognized that Mansell was unambiguous on this point, and the court therefore “acknowledge[d] [its] duty to follow Mansell’s holding that the [USFSPA] precludes a [state] court’s authority to divide any military benefits other than ‘disposable retired pay.’ ” Id. Many other courts have come to this same conclusion, even though it sometimes creates an unfair hardship for former spouses. See, e.g., Davis v. Davis, 777 S.W.2d 230, 232 (Ky. 1989) (“[W]e recognize the potential for inequity to the former spouse, but conclude that the wording of [the USFSPA] evidences an intention on the part of Congress to make these [disability] payments solely for the use of the disabled veteran.”).
¶ 17. Given our holding that the original property division order did not grant wife any interest in disability benefits that the VA later awarded to husband, an enforcement proceeding of that order cannot grant wife a larger percentage of husband’s disposable retirement benefits. Our holding in Mason v. Mason, 2006 VT 58, 180 Vt. 98, 904 A.2d 1164, is not to the contrary. Wife cites Mason as support for using an enforcement order to change a number to better reflect the intent of the original divorce order. Wife is correct that the original decree in Mason awarded the husband 16,066 of the wife’s 48,200 shares of stock, and this Court affirmed a trial court enforcement order giving the husband an additional 8,033 shares. But Mason is easily distinguishable from this case. To begin, Mason did not involve the federal preemption [66]*66issue that arises in this case. Thus, whatever powers the trial court had to reapportion a property division in Mason, those powers are preempted by federal law here. Further, in Mason, the parties were still married when the wife acquired a right to additional shares through a stock split. The wife never informed her husband or the court of those additional shares, even though the shares “vested before the parties signed the stipulation and before the divorce was final.” Id. ¶ 2. Mason stands for the proposition that one person cannot hide vested assets from the other while a divorce is pending. Here, on the other hand, husband did not have any vested right to disability benefits while he was married. Rather, the parties were divorced on October 14, 2005, and it was not until November 9, 2005 that the VA even received husband’s disability application. The VA could easily have denied husband’s application altogether, and in fact the VA did deny a number of husband’s requests when the VA awarded him only 80% disability. Thus, none of husband’s disability benefits were vested at the time of the divorce. Unlike Mason, this is not a situation where one party was hiding vested assets from the other. The trial court therefore erred in using an enforcement proceeding to change the percentage of husband’s retirement benefits that husband owed wife.
¶ 18. Our decision in Mason represented an exception; the general rule is that enforcement proceedings should not disturb the plain language of the original property division order. As noted earlier, one reason that we must stick to the plain language of the original property division order is that property division orders are meant to be final. Here, the trial court correctly recognized that “a property settlement is meant to happen once.” Under Vermont law, the initial property division order “shall settle the rights of the parties to their property.” 15 V.S.A. § 751(a). Parties should not have to bring further litigation whenever future actions affect the division of benefits. We recognize that it may be argued that here it was husband’s actions — in unilaterally applying for disability benefits — that upset the finality of the original property division order. To focus on this, however, is to ignore the critical point that finality is about ending litigation. Indeed, we define a final judgment as one where “the effect ... is to end the litigation.” City of St. Albans v. Goodrich, 135 Vt. 241, 242, 373 A.2d 549, 549 (1977). Husband was well within his rights to apply for disability benefits. See Kramer v. [67]*67Kramer, 567 N.W.2d 100, 110 (Neb. 1997) (holding in a similar situation that there was “no evidence that the husband took any improper or unlawful action,” since “[n]o provision in the original decree or the modified decree prohibited him from exercising his right to apply for service-connected disability benefits or from waiving a corresponding amount of his retirement benefits if his application was approved”). His actions did not necessitate any further litigation, since he could continue to pay wife 19.81% of his disposable retirement benefits. It is wife who sought further litigation to change the number from 19.81% to 22.4%.
¶ 19. Other courts have concluded that in general a party cannot be required to pay more than the original percentage stated in the final property division order. For instance, in Ex parte Billeck, 777 So. 2d 105 (Ala. 2000), the Alabama Supreme Court overturned a lower court decision that had forced the husband to pay additional money to the wife when, as in this case, the wife started receiving less money from the husband’s military retirement benefits because the husband applied for and was granted disability benefits. One of the reasons the Billeck court sided with the husband was that “[t]he husband ha[d] complied with the literal language of the judgment” by paying the full percentage of disposable retirement benefits. Id. at 109. Similarly, here husband need pay only 19.81% of his disposable retirement benefits to be in full compliance with the literal language of the original property division order.
¶ 20. The trial court’s decision relied on cases from the Tennessee Supreme Court and from intermediate courts of appeal in Arizona, Arkansas, Colorado, Missouri, and New York, all of which the trial court found to have held that a military servicemember cannot “unilaterally” modify a judgment by reclassifying the form in which the servicemember receives payments. See Johnson v. Johnson, 37 S.W.3d 892 (Tenn. 2001); In re Marriage of Gaddis, 957 P.2d 1010 (Ariz. Ct. App. 1997); Surratt v. Surratt, 148 S.W.3d 761 (Ark. Ct. App. 2004); In re Marriage of Lodeski, 107 P.3d 1097 (Colo. App. 2004); In re Marriage of Strassner, 895 S.W.2d 614 (Mo. Ct. App. 1995); Mills v. Mills, 802 N.Y.S.2d 796 (App. Div. 2005). We recognize that the first two of these cases — Johnson and Gaddis — directly support wife in the appeal before this Court, as do other cases not cited by the trial court. See, e.g., Black, 2004 ME 21. Indeed, some courts claim that the “majority of courts have upheld the division of total [68]*68retired pay,” In re Marriage of Hayes, 208 P.3d 1046, 1051 (Or. Ct. App. 2009), or that the “majority of state courts, on one theory or another, take equitable action to compensate the former spouse” in these types of situations, Surratt, 148 S.W.3d at 767. Despite these claims, our research reveals no clear majority viewpoint here, and there are many cases that directly support husband’s position that — at least when the original property division order states an exact percentage and contains no indemnity provision — a former spouse cannot use an enforcement proceeding to receive an increased percentage to offset the military servicemember’s subsequent application and receipt of disability benefits. See Billeck, 777 So. 2d at 109; Clauson v. Clauson, 831 P.2d 1257, 1264 (Alaska 1992); Ashley v. Ashley, 990 S.W.2d 507, 508-09 (Ark. 1999); Robinson v. Robinson, 647 So. 2d 160, 161 (Fla. Dist. Ct. App. 1994) (per curiam); Jones v. Jones, 780 P.2d 581, 584 (Haw. Ct. App. 1989); In re Marriage of Pierce, 982 P.2d 995, 998 (Kan. Ct. App. 1999); Wright v. Wright, 594 So. 2d 1139, 1142 (La. Ct. App. 1992); Morgan, 249 S.W.3d at 233; Moon v. Moon, 795 S.W.2d 511, 514 & n.2 (Mo. Ct. App. 1990); Halstead v. Halstead, 596 S.E.2d 353, 357 (N.C. Ct. App. 2004); Troxell v. Troxell, 28 P.3d 1169, 1171-72 (Okla. Civ. App. 2001); Hagen, 282 S.W.3d at 905; Thomas v. Piorkowski, 286 S.W.3d 662, 669 (Tex. App. 2009); Geesaman v. Geesaman, Nos. CK92-3641, 92-7-30-DIV, 1993 WL 777094, at *5 (Del. Fam. Ct. July 21, 1993); Gilliland v. Stanley, No. 3258, 1997 WL 180587, at **2-3 (Tenn. Ct. App. Apr. 16, 1997); Sharp v. Sharp, No. 04-08-00921-CV, 2009 WL 3298131, at *2 (Tex. App. Oct. 14, 2009); Press v. Press, No. 03-97-00432-CV, 1998 WL 271054, at *3 (Tex. App. May 29, 1998).3 We find this latter line of cases more persuasive than the cases [69]*69that the trial court relied upon to rule in favor of wife on this issue.
¶ 21. Two of the cases cited by the trial court — Lodeski and Mills — are easily distinguishable. In Lodeski, the original property division order granted the wife a specific dollar amount, and the court was therefore able to use an enforcement proceeding to guarantee that she continued to receive those payments. Here, on the other hand, the property division order grants wife only a percentage and therefore does not guarantee any fixed dollar amount. Mills is distinguishable because there the husband had agreed to make certain payments as both an equitable property division and as spousal support, and the court therefore held that the husband was contractually bound to continue to provide support even after he was classified as 100% disabled. Here, on the other hand, husband’s payments from his retirement benefits were not meant for spousal support, and husband has not agreed to any minimum payment.
¶ 22. The trial court’s reliance on Surratt and Strassner is also misplaced. In each of those cases, unlike the case before us on appeal, the original property division order contained an indemnity provision protecting the spouse from any efforts by the military servicemember to take disability benefits or do anything else that would decrease retirement benefits. Strassner is particularly enlightening with respect to the significance of this distinction. In Strassner, the trial court’s initial property division order included a special provision requiring the husband to either (1) refrain from doing anything (such as applying for disability benefits) that would reduce the amount of the payments going to the wife, or (2) indemnify the wife for any sums reduced by such action. Although here the trial court cited Strassner as supporting the wife’s argument, it actually supports husband’s position. Last year, a separate appellate division of the Missouri Court of Appeals distinguished Strassner because “[h]ere, there was no indemnity clause protecting [wife] from the possibility of [hus[70]*70band’s] becoming eligible for and receiving disability benefits.” Morgan, 249 S.W.3d at 233. The same could be said in this case because the trial court’s original property division order did not include any indemnity clause.
¶ 23. Without an indemnity clause, and without any specific dollar amount guaranteed to wife, the trial court’s order put wife on constructive notice that 19.81% of husband’s retirement benefits could result in a different dollar amount from month to month.4 This is one reason that other courts have refused to allow a retroactive change of a set percentage. See, e.g., Morgan, 249 S.W.3d at 233 (servicemember’s subsequent approval for disability benefits — lowering his retirement benefits — “was merely a contingency for which [the former spouse] was unprotected”).
¶ 24. The trial court’s actions here represented an attempt to attach funds that federal law does not allow the trial court to distribute as property in a divorce proceeding. See, e.g., Pierce, 982 P.2d at 998 (“Mansell makes it perfectly clear that the state trial courts have no jurisdiction over disability benefits received by a veteran. . . . We conclude the court may not do indirectly what it cannot do directly” (emphasis added)); King v. King, 386 N.W.2d 562, 565 (Mich. Ct. App. 1986) (“[W]e agree with [the military servicemember] that his military pension may not be considered directly or indirectly in the distribution of the marital property.” (quotation marks omitted)); see also Jones, 780 P.2d at 584 (vacating a property division order that awarded the wife assets specifically to offset the husband’s disability benefits). By raising -wife’s percentage of husband’s disposable retirement benefits, the trial court was clearly offsetting the effect that husband’s receipt of disability benefits had on the payments due to wife. As the Alaska Supreme Court noted in a case very similar to this one, although courts can look at disability benefits when determining the proper allocation in the initial property division order, courts cannot use an enforcement proceeding to “simply shift an amount of property equivalent to the waived retirement pay from the military spouse’s side of the ledger to the other spouse’s side.” Clauson, 831 P.2d at 1264. The Clauson court [71]*71explicitly rejected efforts by a trial court “to regain the status quo as if the Mansell decision did not exist.” Id. The court explained that the trial court’s enforcement order violated Mansell because “[t]he effect of the order was to divide retirement benefits that have been waived to receive disability benefits.” Id.
¶ 25. Some courts have gone even further and held that former spouses cannot use the original proceeding to impose indemnity provisions or other protections against future actions by the military servicemember, since federal law precludes spouses from benefitting in any way from a military servicemember’s disability benefits. Halstead, 596 S.E.2d at 357. Specifically, in what is often referred to as the anti-attachment clause, federal law states that VA benefits “shall be exempt from taxation, shall be exempt from the claim of creditors, and shall not be liable to attachment, levy, or seizure by or under any legal or equitable process whatever, either before or after receipt by the beneficiary.” 38 U.S.C. § 5301(a)(1).5 Although the Mansell Court did “not decide whether the anti-attachment clause . . . independently protects” disability benefits, 490 U.S. at 587 n.6 (citation omitted), the Halstead court did reach this issue and held that indemnity provisions relating to disability benefits violate the prohibition on attaching disability benefits before receipt by the beneficiary. Halstead, 596 S.E.2d at 357 (citing 38 U.S.C. § 5301(a)(1)); see also Cunningham v. Cunningham, 615 S.E.2d 675, 682 (N.C. Ct. App. 2005) (overturning a trial court order and noting that upon remand the new order cannot foreclose the military servicemember from applying for disability benefits); Press, 1998 WL 271054, at *3 (holding that state courts cannot enforce divorce provisions that preclude military servieemembers from subsequently shifting retirement benefits to disability benefits). But see, e.g., Abernethy v. Fishkin, 699 So. 2d 235, 239-40 (Fla. 1997) (holding that although the “division of veterans’ disability benefits, whether through court order or settlement agreement, [was] preempted by federal law,” an indemnity agreement that allowed the wife to later obtain damages in the amount of the husband’s waived retirement benefits was enforceable).
[72]*72¶26. We do not need to go as far as Halstead in our decision today, since here there was no indemnity provision in the original order. Rather, here the trial court in effect retroactively added an indemnity provision to the original order to protect wife. This Court has previously held that where the language of a property division order “could have provided for security, but it failed to do so,” we will not retroactively add provisions to protect one of the parties. Sumner v. Sumner, 2004 VT 45, ¶ 9, 176 Vt. 452, 852 A.2d 611 (citation omitted). We recognize that the trial court was faced with a difficult situation and that it was attempting to find an equitable solution, but such a solution was not possible in an enforcement proceeding given the clear text in the original property division order granting wife only 19.81% of husband’s disposable retirement benefits. As we have noted in similar situations, when a party’s “main complaint is not with the text of the [original property division order], but with its unexpected outcome,” it is error for the trial court “to stray from the clear language of the . . . order and to recast the equities.” Sachs, 163 Vt. at 505, 659 A.2d at 681-82. Other courts have similarly held that trial courts cannot use enforcement proceedings to add indemnity provisions that were not in the original property division order. See, e.g., Troxell, 28 P.3d at 1171 (holding that retroactive indemnity provisions were invalid because they were “not in conformity with the terms of the [original] divorce decree”).
¶ 27. The Texas Supreme Court recently addressed this same issue in a case where the original property division order referred only to a specified percentage of the military servicemember’s retirement benefits and said nothing about disability benefits. Hagen, 282 S.W.3d 899. The Hagan court held that the decree must be interpreted literally as “not provid[ing] [that the wife] is to receive payments calculated on any other basis, or that she is to receive part of [the husband’s] VA disability compensation.” Id. at 908. The court recognized that although its conclusion apparently “worked an inequity” on the former spouse, no other interpretation of the original property division was possible. Id. After Hagen, an appellate court reached a similar result, with Justice Barnard “reluctantly” concurring in what she viewed as the “grossly unfair” result of allowing a military servicemember “to unilaterally make an election seventeen years after the parties negotiated a property division that necessarily changes that [73]*73division.” Sharp, 2009 WL 3298131, at **2-3 (Barnard, J., concurring). While the fairness question is debatable, see Hagen, 282 S.W.3d at 908 (when there was no indication that, at the time of the original order, the former spouse did not “have full opportunity to present her legal and equitable positions, present her proof, and request the decree she wanted the trial court to enter,” it was fair to hold her to the terms of that order), Justice Barnard ultimately concluded that federal law precludes any other result: “Congress will need to revisit” the issue before state courts will have the power to reach a different outcome. 2009 WL 3298131, at *3 (Barnard, J., concurring); accord, e.g., Moon, 795 S.W.2d at 514 & n.2 (holding that state courts cannot retroactively change a set percentage and that although “this result allows former military personnel unilaterally to alter the terms of a final judgment dividing marital property,” the United States Supreme Court compelled such as result in Mansell). As one court has stated, federal law is “very clear” that the former spouse has “no right to those amounts of retirement benefits which the [former military servicemember] waived so he could receive disability benefits.” Wright, 594 So. 2d at 1142. We come to the same conclusion today.
¶ 28. For these reasons, we hold that the trial court erred when it used an enforcement proceeding to increase wife’s percentage of husband’s disposable, retirement benefits. Our holding today is a narrow one. We express no view on whether a former spouse in another case could receive an increased share of a military servicemember’s disposable retirement benefits either through an indemnity provision in the original property division order or through meeting the standard in Rule 60(b) for relief from judgment. We hold only that in this case an enforcement proceeding cannot provide the mechanism for this type of adjustment.
Reversed and remanded for reinstatement of 19.81% as the allocation to wife of husband’s disposable retirement benefits; affirmed in all other respects.