BAKER v. CARR, 186 Opinion of the Court. become operative. The Three Friends, 166 U. S. 1, 63, 66. Still again, though it is the executive that determines a person's status as representative of a foreign government, Ex parte Hitz, 111 U. S. 766, the executive's statements will be construed where necessary to determine the court's jurisdiction, In re Baiz, 135 U. S. 403. Similar judicial action in the absence of a recognizedly authoritative executive declaration occurs in cases involving the immunity from seizure of vessels owned by friendly foreign governments. Compare Ex parte Peru, 318 U. S. 578, with Mexico v. Hoffman, 324 U. S. 30, 34-35. Dates of duration of hostilities: Though it has been stated broadly that "the power which declared the necessity is the power to declare its cessation, and what the cessation requires," Commercial Trust Co. v. Miller, 262 U. S. 51, 57, here too analysis reveals isolable reasons for the presence of political questions, underlying this Court's refusal to review the political departments' determination of when or whether a war has ended. Dominant is the need for finality in the political determination, for emergency's nature demands "A prompt and unhesitating obedience," Martin v. Mott, 12 Wheat. 19, 30 (calling up of militia). Moreover, "the cessation of hostilities does not necessarily end the war power. It was stated in Hamilton v. Kentucky Distilleries & W. Co., 251 U. S. 146, 161, that the war power includes the power 'to remedy the evils which have arisen from its rise and progress' and continues during that emergency. Stewart v. Kahn, 11 Wall. 493, 507." Fleming v. Mohawk Wrecking Co., 331 U. S. 111, 116. But deference rests on reason, not habit. 8 The question in a particular case may not seriously implicate considerations of finality--e. g., a public program of importance 38See, e. g., 426. Home Building & Loan Assn. v. Blaisdell, 290 U. S. 398,

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