No Unauthorized War in Mexico Act

HR 7059, the "No Unauthorized War in Mexico Act," prohibits the use of federal funds for military force in or against Mexico without specific congressional authorization after its enactment. It requires Congress to either declare war or pass a new law meeting War Powers Resolution standards for any military action during the period starting when the bill becomes law and ending December 31, 2026. The bill directly affects the U.S. military and federal agencies managing defense spending, preventing unilateral military operations without explicit congressional approval. An exception exists for actions consistent with existing War Powers Resolution provisions for immediate threats.