 The 5th RCT left Korea effective 30 June 1949 and was transferred to Schofield Barracks, Hawaii, where it was when the Korean War began.It deployed to Korea on 25 July 1950 to reinforce Eighth Army in the shrinking area of United Nations control known as the Pusan Perimeter.In July and August it reinforced the 25th Infantry Division, then the 1st Cavalry Division on the Naktong River line.