Authority of the President to Blockade Cuba

CourtDepartment of Justice Office of Legal Counsel
DecidedJanuary 25, 1961
StatusPublished

This text of Authority of the President to Blockade Cuba (Authority of the President to Blockade Cuba) is published on Counsel Stack Legal Research, covering Department of Justice Office of Legal Counsel primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

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Authority of the President to Blockade Cuba, (olc 1961).

Opinion

Authority of the President to Blockade Cuba Under international law, the President may institute a blockade of Cuba as an incident to a state of war, and conceivably a blockade could also be justified as a necessary measure of defense. The legality of the blockade could probably be tested by Cuba, by other countries, and by their nationals in the courts of the United States, and Cuba and other countries could raise the legality issue before the United Nations and the Organization of American States. It is not clear whether this issue could be raised before the International Court of Justice.

January 25, 1961

MEMORANDUM OPINION FOR THE ATTORNEY GENERAL*

In response to your request, I am transmitting the attached memorandum on the above-entitled subject. In view of the length of the memorandum, I believe it would be helpful to summarize the conclusions reached. The memorandum concludes that the President is authorized to institute a blockade as an incident to a state of war. However, a blockade is a belligerent act which, as a matter of international law, is ordinarily justified only if a state of war, legal or de facto, exists. Conceivably a blockade could also be justified in circumstances in which the blockading country can establish it to be a necessary measure of defense. Whether the necessary facts required to support such a contention exist, however, is not known to me. The legality of the blockade could probably be tested by Cuba, by other coun- tries, and by their nationals in the courts of the United States. In addition, Cuba and other countries could raise the issue of the legality of the blockade before the United Nations and the Organization of American States. It is not clear whether this issue could be raised before the International Court of Justice.

*****

This is in response to your request for the views of this Office as to the Presi- dent’s authority to declare a blockade, by the naval air forces of the United States, of the ports and coast of Cuba. We first discuss the legal circumstances which have been held to justify the imposition of a blockade, and in this connection the President’s authority to act. Next, we consider whether under applicable principles of law a case may be made for a blockade of Cuba. Finally, we consider the question of the forums, both domestic and international, which may be available for challenging the validity of a United States blockade of Cuba. In view of the way in which the question has been put to us, we have not undertaken in any manner to consult with the Department of State, the expert agency in this field.

* Editor’s Note: The matter preceding the asterisks is the cover memorandum to the Attorney General. Assistant Attorney General Kramer signed both the cover and the main memorandum.

195 Supplemental Opinions of the Office of Legal Counsel in Volume 1

I.

At the outset it should be noted that both courts and commentators are agreed that a blockade involves a state of war; i.e., it is the right of a belligerent alone. Thus, in the Prize Cases, 67 U.S. (2 Black) 635 (1862), in which the Supreme Court sustained the power of the President to proclaim a blockade of the ports of the United States seized by the southern states in rebellion, the decision turned on the question whether a state of war existed. As the Court put it: “Let us enquire whether, at the time this blockade was instituted, a state of war existed which would justify a resort to these means of subduing the hostile force.” Id. at 666. The Court concluded that the military insurrection of the Southern States gave rise to a state of war which “[t]he President was bound to meet . . . in the shape it presented itself, without waiting for Congress to baptize it with a name; and no name given to it by him or them could change the fact.” Id. at 669. On this basis, the Court held that the President “had a right, jure belli, to institute a blockade of ports in possession of the States in rebellion, which neutrals are bound to regard.” Id. at 671. Other decisions of the Supreme Court recognize the principle that blockade is an incident of a state of war. In McCall v. Marine Ins. Co., Justice Story, writing for the Court, stated:

The right to blockade an enemy’s port with a competent force, is a right secured to every belligerent by the law of the nations. No neu- tral can, after knowledge of such blockade, lawfully enter, or attempt to enter, the blockaded port. It would be a violation of neutral char- acter, which, according to established usages, would subject the property engaged therein to the penalty of confiscation. In such a case, therefore, the arrest and restraint of neutral ships attempting to enter the port, is a lawful arrest and restraint by the blockading squadron.

12 U.S. (8 Cranch) 59, 65 (1814) (emphasis in original). And in Olivera v. Union Ins. Co., Chief Justice Marshall stated, that “a belligerent may lawfully blockade the port of his enemy, is admitted.” 16 U.S. (3 Wheat.) 183, 194 (1818). A forthright statement was made by the Supreme Court of West Virginia in the case of Grinnan v. Edwards:

A blockade, is the exercise of belligerent right; before a blockade can be declared, a war must exist; and a blockade lawfully declared, is conclusive evidence that a state of war exists between the nation declaring such a blockade, and the nation whose ports are blockaded.

21 W. Va. 347, 356 (1883).

196 Authority of the President to Blockade Cuba

International law experts have the same view of the blockade. George Grafton Wilson, Professor Emeritus of International Law, Harvard University, states: “The term blockade, properly used, involves a state of war.” 4 Encyclopedia Americana 98d (1958). In the seventh edition of Oppenheim’s International Law, edited by the late Professor Lauterpacht (subsequently a judge of the International Court of Justice), it is stated:

Blockade is the blocking by men-of-war of the approach to the ene- my coast, or a part of it, for the purposes of preventing ingress and egress of vessels or aircraft of all nations. . . . Although blockade is . . . a means of warfare against the enemy, it concerns neutrals as well, because the ingress and egress of neutral vessels are thereby in- terdicted, and may be punished.

2 id. at 768 (1952). In a fairly recent article, a blockade is described as the means by which a belligerent cuts off “all access to the coast of the enemy.” S.W.D. Rowson, Modern Blockade: Some Legal Aspects, 1949 Brit. Y.B. Int’l L. 346, 349. Our own Department of State took the position in 1919 that no blockade could be instituted absent a state of war. In that year, in connection with a proposal that the Allied Governments blockade Bolshevist Russia, it telegraphed the American Commission to Negotiate Peace as follows: “A blockade before a state of war exists is out of the question. It could not be recognized by this Govern- ment.” Scope of Blockade, 7 Hackworth Digest § 624, at 125. A technical departure from the rule that a blockade can be imposed only as an incident to a state of war is President McKinley’s action in 1893. On April 20, 1898, Congress by joint resolution directed the President to use the land and naval forces of the United States to compel the Government of Spain to relinquish its authority over Cuba. Pub. Res. No. 55-24, 30 Stat. 738. In accordance with this resolution, President McKinley, on April 22, 1898, issued a proclamation institut- ing a naval blockade of the north coast of Cuba. 14 Compilation of the Messages and Papers of the Presidents 6472 (James D. Richardson ed., 1909). It was not until April 25, 1898, that Congress declared that a state of war with Spain existed. Pub. L. No. 55-189, 30 Stat. 364 (1898). In the declaration it was stated, however, that a state of war had existed since April 21, 1898. Id.

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Related

Olivera v. The Union Insurance Company
16 U.S. 183 (Supreme Court, 1818)
The Brig Amy Warwick
67 U.S. 635 (Supreme Court, 1862)
Grinnan v. Edwards
21 W. Va. 347 (West Virginia Supreme Court, 1883)
Ling v. 1,689 Tons of Coal Lying Aboard S. S. Wilhelmina
78 F. Supp. 57 (W.D. Washington, 1942)

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