The UN troops, composed mainly of Americans, landed in South Korea in early July, but were soon pushed back on defense by the North Korean forces, forming a perimeter around Pusan to defend the line until reinforcements arrived in August.
主要由美國人組成的聯合國軍於7月初在韓國登陸,但很快就被北韓軍隊推倒在防線上,在8月增援部隊到達之前,在釜山周圍形成了一個包圍圈,防守防線。