The War Powers Resolution, passed in 1973 over President Nixon's veto, attempted to restore congressional war-making authority by imposing procedural limits on presidential military deployment. The statute requires the President to notify Congress within 48 hours of committing armed forces to military action and limits most deployments to 60 days without congressional approval (extended to 90 days if withdrawal is planned).
The Resolution reflects Congress's frustration with undeclared wars in Korea and Vietnam, where presidents deployed massive force without declarations. It asserts that the President cannot commit forces to sustained combat without congressional authorization—either a war declaration or a specific authorization for military force. Yet every president since Nixon has challenged the Resolution's constitutionality as an infringement on Commander in Chief power.
In practice, the Resolution has been largely ineffective. Presidents notify Congress but argue the 60-day clock doesn't start, or claim inherent authority to exceed 60 days. Congress rarely forces compliance through the admittedly-cumbersome procedures (concurrent resolution procedures the Court has since questioned). The 2001 Authorization for Use of Military Force against 9/11 perpetrators became a substitute for declarations, remaining in effect for over 20 years and justifying operations in multiple countries.
The War Powers Resolution tests whether Congress can enforce its constitutional role in war-making. If presidents successfully resist the law, Congress loses its war-making power and becomes irrelevant to decisions to commit American forces to combat.
People often think the War Powers Resolution prevents the President from waging war. In practice, it's been largely unenforced, and presidents still deploy forces for extended periods by asserting inherent authority.
The War Powers Resolution tests whether Congress can enforce its constitutional role in war-making. If presidents successfully resist the law, Congress loses its war-making power and becomes irrelevant to decisions to commit American forces to combat.
People often think the War Powers Resolution prevents the President from waging war. In practice, it's been largely unenforced, and presidents still deploy forces for extended periods by asserting inherent authority.