Answer:
Douglas MacArthur was an American military, five-star general of the United States Army and field marshal of the Philippine Army. He acted as supreme allied commander in the Pacific Front during World War II. He is the most decorated military in the history of the United States of America.
Although he lost the Philippines during the initial stages of World War II, he successfully led the defense of Australia and the reconquest of New Guinea, the Philippines and Borneo. He was the chief intended to lead the invasion of Japan in November 1945, so when the country surrendered, he was appointed representative of the allies at the surrender ceremony on September 2. He supervised the occupation of Japan from 1945 to 1951.
He led the United Nations forces that defended South Korea in 1950-1951 against North Korea's attempt to unify the country by force. MacArthur was released from command by President Harry S. Truman in April 1951, for his public discrepancies with presidential policy.
