This Act may be cited as the No Unauthorized War in Mexico Act.

(a) In general Except as provided in subsection (b), no funds appropriated or otherwise made available for the Federal Government may be obligated or expended during the period beginning on the date of the enactment of this Act and ending on December 31, 2026, for any use of military force in or against Mexico unless Congress has— (1) declared war on Mexico; or (2) enacted specific statutory authorization for such use of military force after the date of the enactment of this Act that meets the requirements of the War Powers Resolution (50 U.S.C. 1541 et seq.U.S. Code — Title 50, Section 1541 and followingView official source on GovInfo). (b) Exception The prohibition under subsection (a) shall not apply to a use of military force that is consistent with section 2(c) of the War Powers Resolution (50 U.S.C. 1541(c)U.S. Code — Title 50, Section 1541(c)View official source on GovInfo).