Who represented the Allied powers as Supreme Commander at Japan’s surrender ceremony?

Douglas MacArthur represented the Allied powers as Supreme Commander at Japan’s surrender ceremony.

MacArthur served as Supreme Commander for the Allied Powers and presided over the ceremony aboard USS Missouri on 2 September 1945. He delivered the opening remarks and signed the Japanese Instrument of Surrender on behalf of the Allied nations.

His role reflected the command structure created for Japan’s defeat and occupation. Admiral Chester W. Nimitz also signed the document, but he represented the United States rather than acting as the overall Allied signatory. This distinction causes a frequent mix-up between MacArthur and Nimitz.

MacArthur had commanded Allied forces in the Southwest Pacific Area and had returned to the Philippines in 1944 after promising, “I shall return.” After Japan surrendered, he became the central authority of the Allied occupation of Japan. His office supervised demobilization, demilitarization, political reforms, and the military tribunals that followed the war.