Japanese troops stage an attack on a railway line as a pretext to invade Manchuria
The Marco Polo Bridge Incident leads to full-scale war between Japan and China.
Japan formally joins Germany and Italy, forming the Axis powers.
Japan attacks the American naval base at Hawaii without a declaration of war.
British troops surrender in Singapore, one of the greatest Japanese victories.
A crucial naval battle in which Japan loses four aircraft carriers and loses the initiative in the Pacific
American troops conquer Saipan, bringing the Japanese homeland within reach of bombers.
American firebombs destroy large parts of Tokyo and kill tens of thousands of civilians.
The United States drops atomic bombs on two Japanese cities, with devastating consequences.
Emperor Hirohito announces the surrender of Japan, bringing World War II to an end.
The Kwantung Army, stationed in southern Manchuria, damaged its own railway line near Mukden and blamed Chinese saboteurs. This served as the justification for a full military occupation of Manchuria, leading to the establishment of the puppet state of Manchukuo. The incident marked the beginning of Japan's aggressive expansionist policy in Asia and strengthened the military's influence over Japanese politics.