الغزو العراقي للكويت
The 1138th was called upon once again to serve after the Invasion of Kuwait the following year. It was one of the first Guard units placed on alert status in August, 1990 but did not deploy until December, 1990. The Missouri Guard was the first Enemy Prisoner of War (EPW) unit to deploy as part of the 400th MP Battalion. Eventually it set up and operated the 301st EPW Camp, near the Saudi Arabian city of Hafar Al-Batin (Hotel 301). It returned to West Plains, Missouri in May 1991 with a hero's welcome.