H.R. 10586 — NATO Shield Act

This section states congressional findings that the North Atlantic Treaty Organization forms a cornerstone of United States national security, creates binding mutual defense obligations, and that withdrawal would alter exposure to hostilities and deterrence posture. It declares the purpose of the Act to clarify that withdrawal from a mutual defense treaty requires congressional participation under war powers authority.

This section requires the President to consult with Congress within 72 hours of considering or planning withdrawal from NATO and to submit a report within 48 hours of initiating such action that includes legal justification, strategic rationale, and expected military and alliance effects. It terminates any withdrawal action after 30 days unless Congress approves it by joint resolution, bars use of federal funds for terminated actions, establishes expedited procedures for congressional consideration of approval resolutions, and authorizes Members of Congress to seek expedited judicial relief for violations.