Ally [International Law] Law and Legal Definition
When used in the context of international law, the term ‘ally’ refers to a country tied to another country by a treaty or alliance.
Ally can also refer to the citizen or subject of an allied nation.
When used in the context of War Hazard Compensation, ‘allies’ means any nation with which the United States is engaged in a common military effort or with which the United States has entered into a common defensive military alliance. [20 CFR 61.4].