Aftermath of World War II formed into a separate republic in control of Ngo Dinh Diem who was backed in his refusal to hold elections by the US. The communist party of the south eventually organized the common front NLF to fight to unite south and north under the Democratic Republic of Vietnam and thus began the Vietnam War, which ended with the Democratic Republic of Vietnam conquering the South in 1975. Japan invaded and occupied Indonesia during the war and replaced much of the Dutch colonial state. Although the top positions were held by Japanese, the internment of all Dutch citizens meant that Indonesians
War crimes in occupied Poland during World War II at Chełmno according to postwar verdict by West Germany, although up to 340,000 victims were estimated by the Polish Main Commission for Investigation of German Crimes in Poland (GKBZNwP), a predecessor of the Institute of National Remembrance. Following the Wannsee Conference of 1942, as part of highly secretive Operation Reinhard in occupied Poland, the German government built three regular killing centres with stationary gas chambers. It was the most deadly phase of the Final Solution, based on implementing semi-industrial means of killing and incinerating people. The new facilities included Treblinka extermination camp (set up in July 1942), Bełżec (March 1942),