When the Korean War broke out, Captain Houghton was attached to the 1st Provisional Marine Brigade and took part in the Battle of Pusan Perimeter in August 1950. He then took part in the amphibious assault at Inchon in September. On September 19, he led a reconnaissance patrol across the Han River to an enemy held shore line. While the patrol swam to the shore, they came under heavy fire and Houghton was wounded. Despite his wounds, he managed to lead his Marines back across the river while under fire to safety. He was awarded his first Silver Star for his actions that day. He was later wounded again in October and was evacuated from the field. He remained in a hospital until January 1951, when he was also promoted to Major.