Ally

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ALLY, international law. A power which has entered into an alliance with another power. A citizen or subject of one of the powers in alliance, is sometimes called an ally; for example, the rule which renders it unlawful for a citizen of the United States to trade or carry on commerce with an enemy, also precludes an ally from similar intercourse. 4 Rob. Rep. 251; 6 Rob. Rep. 406; Dane's Ab, Index, h.t.; 2 Dall. 15.