Japan during World War I Army budget and expanding the fleet. The Navy thus gained significant political influence over national and international affairs. In the first week of World War I Japan proposed to the United Kingdom, its ally since 1902, that Japan would enter the war if it could take Germany's Pacific territories. On 7 August 1914, the British government officially asked Japan for assistance in destroying the raiders from the Imperial German Navy in and around Chinese waters. Japan sent Germany an ultimatum on 23 August 1914, which went unanswered; Japan then formally declared war on Germany on 23 August 1914 in the
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),