Sukarno and Mohammad Hatta declare the independence of the Republic of Indonesia, with Sukarno as president and Mohammad Hatta as vice-president, igniting the Indonesian National Revolution against the Dutch Empire. August 18 – WWII: Death of Subhas Chandra Bose: Indian nationalist leader Subhas Chandra Bose is killed as a result of his overloaded Japanese plane crashing in Japanese Taiwan. August 19 – Chinese Civil War: Mao Zedong and Chiang Kai-shek meet in Chongqing to discuss an end to hostilities between the Communists and the Nationalists. August 23 – Soviet–Japanese War: Joseph Stalin orders the detention of Japanese prisoners of war in the Soviet Union. August 25 – Bảo Đại abdicates as Emperor of Vietnam, ending 2,000 years of dynastic and monarchic rule in the country and 143 years of the Nguyễn dynasty. August 30 – WWII: Vietnam's capital Hanoi is taken by the Viet Minh, which ends the French occupation in what becomes North Vietnam, and thus the southern provinces become South Vietnam. This ends the August Revolution. August 31 WWII: Allied troops arrest German field marshal Walther von Brauchitsch. A team at American Cyanamid's Lederle Laboratories, Pearl River, New York, led by Yellapragada Subbarow, announces they have obtained folic acid in a pure crystalline form. This vitamin is abundant in green leaf vegetables, liver, kidney, and yeast. September September 2 – World War II ends: Japanese general Tomoyuki Yamashita surrenders to Filipino and American forces at Kiangan, Ifugao. The final official Japanese Instrument of Surrender is accepted by the Supreme Allied Commander, General Douglas MacArthur, and Fleet Admiral Chester W. Nimitz for the United States, and delegates from the United Kingdom, Australia, New Zealand, the Netherlands, China, and others from a Japanese delegation led by Mamoru Shigemitsu, on board the American battleship USS Missouri in Tokyo Bay. General Douglas MacArthur is given the title of Supreme Commander Allied Powers, and is also tasked with the occupation of Japan. The Democratic Republic of Vietnam is officially established, by Ho Chi Minh. September 4 – WWII: Japanese forces surrender on Wake Island, after hearing word of their country's surrender. September 5 Iva Toguri D'Aquino, a Japanese American suspected of being wartime radio propagandist "Tokyo Rose", is arrested in Yokohama. Russian code clerk Igor Gouzenko comes forward with numerous documents implicating the Soviet Union in many spy rings in North America, both in the United States and in Canada. September 8 –