Australia in the Korean War
No. 77 Squadron converted to P-51D Mustang fighters before arriving in Japan in February 1946 to participate in the British Commonwealth Occupation Force. Occupation duties proved uneventful, and No. 77 Squadron was preparing to leave Japan for Australia when the Korean War broke out in June 1950. 77 Sqn was immediately dispatched to Korea, where they became the first UN air unit to enter the war, primarily in ground support, combat air patrol, and escort missions.
2nd Ranger Infantry Company (United States)
On 25 June 1950 the Korean War began when the North Korean People's Army invaded the Republic of Korea (ROK) with 90,000 well-trained and equipped troops who easily overran the smaller and more poorly equipped Republic of Korea Army. In response, the United States (U.S.) and United Nations (UN) began an intervention campaign to prevent South Korea from collapsing. The U.S. troops engaged the North Koreans first at the Battle of Osan where they were badly defeated on 5 July by the better-trained North Koreans. From there, the U.S. and UN suffered a steady stream of defeats that pushed them back to the Pusan Perimeter by August. At the same time, North Korean agents began to infiltrate behind UN lines and attack military targets and cities.