Why hasn't the War Powers Resolution forced the Iran War to end?

The War Powers Resolution (WPR) of 1973, intended to limit presidential authority in committing the U.S. to armed conflict without congressional consent, has not effectively ended or prevented conflict with Iran primarily due to several interwoven factors that complicate its application and enforcement.

First, the nature of the engagement itself often falls into a 'gray area' not explicitly covered by the WPR's framing. Instead of a formally declared, large-scale war, U.S. actions related to Iran typically involve limited engagements, covert operations, targeted strikes (e.g., drone strikes), cyberattacks, and economic sanctions. These activities may not meet the resolution's stringent definition of "hostilities" that would trigger the requirement for congressional authorization within 60-90 days, allowing the Executive Branch to operate without triggering the WPR's limitations.

Secondly, there are persistent ambiguities and differing interpretations of the WPR, particularly regarding what constitutes "hostilities" and the precise scope of presidential authority in military decisions. Presidents have historically asserted the right to use force for national defense or in response to imminent threats without explicit congressional approval, leading to a blurring of the lines defined by the resolution. This lack of clarity often limits the resolution's effectiveness.

Third, congressional oversight and action often prove insufficient to enforce the WPR. Despite some calls from members of Congress to end military involvement, there hasn't been a unified, robust effort to pass legislation that would compel an end to hostilities. This inaction can stem from political divisions, differing foreign policy stances, or a lack of public pressure. Achieving the necessary consensus, especially a two-thirds majority to override a presidential veto, is often challenging due to partisan lines.

Finally, broader strategic and political considerations often overshadow the WPR's stipulations. Military actions against Iran are frequently justified on national security grounds or strategic interests, which often garner political backing. The complex geopolitical landscape involving other countries and regional dynamics further complicates attempts to end conflicts through a domestic legal framework like the WPR.