Authorizes deployment of the U.S. armed forces into hostilities outside the United States only pursuant to: (1) a declaration of war; or (2) an attack upon the United States or its territories or possessions (currently, also pursuant to specific statutory authorization). Prohibits the obligation or expenditure of Department of Defense funds for deployment of forces in contravention of such provision.
Authorizes Members of Congress and persons aggrieved in a liberty or property interest adversely and directly affected to bring an action to challenge the validity of any presidential order which contravenes this Act.