; 50 U.S.C. 1541 et seq.), that the Houthis attacked United States ships operating in international waters on October 9 and October 12, 2016, and the United States responded to threats against United States vessels, personnel, and freedom of navigation with strikes against three radar facilities in Houthi-controlled territory. (4) Section 8(c) of the War Powers Resolution ( 50 U.S.C. 1547(c) ) defines the introduction of United States Armed Forces to include the assignment of members of such armed forces to command, coordinate, participate in the movement of, or accompany the regular or irregular military forces of any foreign country or government when such military forces are engaged, or there exists an imminent threat that such forces will become engaged, in hostilities . (b) Removal of Armed Forces Pursuant to section 5(c) of the War Powers Resolution ( 50 U.S.C. 1544(c) ), Congress hereby directs the President to remove United States Armed Forces from hostilities in the Republic of Yemen, except United States Armed Forces engaged in operations authorized under the 2001 Authorization for Use of Military Force ( Public Law 107–40 ; 50 U.S.C. 1541 note), not later than 30 days after the date of the adoption of this concurrent resolution unless and until a declaration of war or specific authorization for such use of United States Armed Forces has been enacted into law.