Congress invoked the War Powers Resolution in the Multinational Force in Lebanon Act (P.L. 98-119), which authorized the Marines to remain in Lebanon for 18 months during 1982 and 1983. In addition, the Authorization for Use of Military Force Against Iraq Resolution of 1991 (), which authorized United States combat operations against Iraqi forces during the 1991 Gulf War, stated that it constituted specific statutory authorization within the meaning of the War Powers Resolution.