Asia Pacific 1945: Surrender of Japan's Overseas Forces

Political map of East Asia and the Western Pacific on 11 Oct 1945 (End of the Old Order: Surrender of Japan's Overseas Forces), showing the following events: Operation Tiderace; People’s Republic of Korea declared; US forces land at Incheon; Japanese surrender in China; Operation Masterdom; Chinese occupation of northern Indochina; Allied occupation of Indonesia; Operation Beleaguer.

At the time of the Japanese surrender, Japan still had some 4 million troops stationed abroad. Over the following months, the Allies accepted the surrender of these forces, although they were dependent on them to maintain order for many months more. Some Japanese refused to surrender, instead joining the independence movements sprouting up across their former empire, most notably in French Indochina and the Dutch East Indies.


Yangtze River

Following the end of World War II, the Yangtze River was again opened to international trade and patrolled by foreign - in particular US and British - warships. This state of affairs ended in 1949 with the Communist takeover.

Main Events

4–12 Sep 1945 Operation Tiderace

In Operation Tiderace, British seaborne liberation forces led by Lord Louis Mountbatten, Supreme Allied Commander of South East Asia Command, arrive in Japanese-occupied Singapore on 4 September 1945 without encountering any opposition. The Japanese commander, General Itagaki, meets the Allies aboard the HMS Sussex in Keppel Harbour and agrees to surrender his forces—some 77,000 Japanese troops plus another 26,000 in Malaya. The formal surrender takes place in Singapore City Hall on 12 wikipedia

6 Sep 1945 People’s Republic of Korea declared

Korea declares independence as People’s Republicin wikipedia

8 Sep 1945 US forces land at Incheon

US begins occupation of southern Koreain wikipedia

9 Sep 1945 Japanese surrender in China

Remaining Japanese forces in China begin surrendering to Kuomintangin wikipedia

12–13 Sep 1945 Operation Masterdom

On 12 September 1945, British and French troops land in Saigon, Japanese-occupied French Indochina, with their commander Major-General Douglas Gracey arriving the following day. On French request, Gracey’s headquarters instruct him to exercise control only in limited areas to receive the Japanese surrender and exercise temporary command of both British and French wikipedia

15 Sep 1945 Chinese occupation of northern Indochina

Nationalist Chinese forces under Lieutenant General Lu Han occupy French Indochina north of 16th parallel north, formally accepting the Japanese surrender in Hanoi on 28 September. The Chinese remain in occupation for six months, withdrawing only after the French agree to relinquish their lease in Kwangchowan to wikipedia

29 Sep 1945–29 Nov 1946 Allied occupation of Indonesia

About a month after the formal surrender of the Japanese Empire, British and Australian forces begin the process of accepting the surrender of the Japanese in the Dutch East Indies, providing an occupation force to secure the region as they await the arrival of troops from the Netherlands. While the Australian occupation of eastern Indonesia is largely uneventful, the British forces in the west soon come into conflict with the Indonesian wikipedia

30 Sep 1945 Operation Beleaguer

US Marines arrive in Tianjin to accept Japanese surrender and hold region for Chinese Nationalistsin wikipedia