On August 6 and 9, 1945, the Allies dropped atomic bombs on Hiroshima and Nagasaki, respectively. On August 9, the Soviet Union declared war on Japan. The Japanese government on August 10 communicated its intention to surrender under the terms of the Potsdam Declaration.
Imperial Japan surrendered on the 15th August 1945, the formal surrender occurred aboard the battleship USS Missouri in Tokyo Bay on 2nd September 1945.
Many Royal Marines served in the South-East Asian theatre of War on capital ships, in the air and on the ground in various roles and units.
Loss of HMS Prince of Wales and HMS Renown
Battle for Singapore
Battle of Hong Kong
Force Viper in Burma
Hell Ships Lisbon Maru & Hofuku Maru
Kangaw and Hill 170
Special jungle operations
Air operations in the Pacific
Landing craft operations in the Pacific
Liberation of Hongkong, Singapore and Rangoon
Royal Marines who were captured suffered terribly at the hands of the Japanese, some were transported on Hell Ships, many POW’s would never return.
More articles of interest from the SE Asia/ Pacific Theater of War;
Jim Wren Royal Marines at 100 (HMS Repulse & POW)