Singapore's Part in WW2 By Tpaul Jul 7, 1937 Start of Sino-Japanese War This war was the reason the Japanese treated the Singaporean Chinese harshing in Japanese occupied Singapore. Period: Jul 7, 1937 to Jan 1, 1945 Pre-Singaporean War Feb 8, 1942 Japanese Starts Its Attack on Singapore Period: Feb 8, 1942 to Sep 12, 1945 Attacks on Singapore to the Surrender of the Japanese Feb 14, 1942 Alexandra General Hospital Massacre Feb 15, 1942 The Day Singapore Fell Feb 16, 1942 Japanese Occupation Begins Aug 30, 1942 All POWs Sign a Pledge Never to Escape Aug 6, 1945 Hiroshima Bombed by the Americans Aug 9, 1945 Nagasaki Bombed by the Americans Sep 12, 1945 Japanese's Surrender