 Complete the following phrase:  When the Australian government committed 3 RAR, Army Headquarters determined that it would be led by an officer who had served in World War II and had a distinguished record. The commanding officer, Lieutet Colonel F. S. Walsh, who had been in command of the battalion for a year, was to be replaced. Still attending Staff College, Green was chosen. He left Australia for Japan on 8 September, and took over command of 3 RAR on 12 September. He oversaw another two weeks of unit training in Japan, then flew to South Korea on 25 September to await the battalions arrival. 3 RAR arrived in Pusan on 28 September. By that time, the KPA was retreating back into North Korea following the 