Earmarked as part of the reinforcements to U.S. Army troops in the Philippines, the 2nd Battalion, 131st Field Artillery, was detached from the 36th Infantry and deployed on 21 November 1941 to join in the Pacific War. The 131st took part in the Battle of Java and fought fiercely at Porong with several other Allied units until the battalion was captured by the Japanese in March 1942. Information on the unit's fate was unknown and considered "lost" as details following the Dutch surrender in Java failed to reach the U.S. government.