---
title: "War Powers Resolution of 1973 — Definition & Meaning"
description: "The War Powers Resolution of 1973 mandates presidential consultation with Congress before military action, reflecting legislative authority in war-making."
url: "https://modeldiplomat.com/learn/glossary/war-powers-resolution-of-1973"
---

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Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- The War Powers Resolution of 1973 is a U.
- S.
- What is the significance of the 60-day clock in the War Powers Resolution?
- How was the War Powers Resolution enacted given President Nixon's opposition?
- How did INS v. Chadha (1983) affect the War Powers Resolution?

[Civil Service & Diplomatic Exams](https://modeldiplomat.com/learn/civil-services/glossary)Updated June 22, 2026

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## Positions at a glance

### Supporters

In practice, every President since Nixon — Ford, Carter, Reagan, both Bushes, Clinton, Obama, Trump, and Biden — has regarded the Resolution as an unconstitutional encroachment on Commander-in-Chief powers, while generally reporting "consistent with" rather than "pursuant to" its terms to avoid conceding its validity. Reagan's 1983 Lebanon deployment, Clinton's 1999 Kosovo air campaign (which exceeded 60 days without authorization), and Obama's 2011 Libya intervention all illustrated the law's weak enforcement. Congress has authorized force separately through the 2001 and 2002 Authorizations for Use of Military Force (AUMFs). In 2019–2020 Congress invoked the Resolution to challenge U.S. support for the Saudi-led Yemen campaign and the strike on Qasem Soleimani, but resolutions were vetoed. As of 2026 the Resolution remains in force yet largely unenforced, with debate ongoing over repealing the 2001/2002 AUMFs.

### Opponents

The War Powers Resolution of 1973 (Public Law 93-148; 50 U.S.C. §§ 1541–1548), also styled the War Powers Act, is a joint resolution enacted by the United States Congress over President Richard Nixon's veto on 7 November 1973. Born of congressional frustration with the undeclared escalation of the Vietnam War and the secret bombing of Cambodia, it represents the most significant statutory attempt to reassert the legislature's constitutional war-making authority under Article I, Section 8 — which vests Congress with the power "to declare War" — against expansive Executive claims rooted in the President's Article II role as Commander-in-Chief. The Resolution's stated purpose (§ 1541) is to ensure the "collective judgment" of both branches before U.S. forces are introduced into hostilities.

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In 2011, President Barack Obama continued the U.S. air campaign over Libya beyond the War Powers Resolution's 60-day limit without congressional authorization, arguing the operation did not constitute "hostilities" under the statute.

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