Second Sino-Japanese War
East Asia 1941.0413
Second Sino-Japanese War, Japan-China War, Rape of Nanking (13 April 1941)
Historical Map of East Asia & the Western Pacific
Thailand saw the French capitulation to Japan as weakness, seizing the opportunity to regain lost territories by invading French Indochina. The Japanese quickly put a stop to this war, but supported Thai claims at the ensuing peace treaty. With its focus now on the south, Japan signed a neutrality pact with the Soviet Union.
Joachim von Ribbentrop of Nazi Germany, Galeazzo Ciano of the Kingdom of Italy, and Saburō Kurusu of the Empire of Japan sign the Tripartite Pact in Berlin, capital of Germany. The 10 year Pact recognizes the right of Germany and Italy to establish a new order in Europe while Japan does so in Greater East Asia; it also compels the contracting Powers to come to the aid of any one of them that is attacked by a Power not presently involved in either World War II in Europe or the Sino-Japanese War.
British reopening of Burma Road
Following the Japanese occupation of northern French Indochina and the continuation of Japanese offensives in China, the United Kingdom ends its conditional three month closure of the Burma Road, allowing supplies to reach Nationalist China again.
Following a number of border skirmishes along the disputed Mekong frontier, war erupts between the Kingdom of Thailand and Vichy-controlled French Indochina. While the superior Royal Thai Air Force bombs cities in Laos and Cambodia, the Thai army overruns French border defenses. The war is brought to an end by a Japanese mediated ceasefire, after which French Indochina is forced to cede most of the disputed territory to Thailand.
Following a Japanese-sponsored "Conference for the Cessation of Hostilities", the Vichy government of France signs a ceasefire with the Kingdom of Thailand aboard the Japanese cruiser Natori. A formal peace treaty is signed in Tokyo on 9 May, whereby France agrees to cede Battambang, Pailin, Siem Reap, Banteay Meanchay, Oddar Meanchey, Preah Vihear, and Xaignabouli to Thailand.