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During World War II, Kuybyshev was chosen to be the alternative capital of the Soviet Union should Moscow fall to the invading Germans.[2] In October 1941, the Communist Party and governmental organisations, diplomatic missions of foreign countries, leading cultural establishments and their staff were evacuated to the city. This decision was reversed in the summer of 1943.[3] A dugout for Joseph Stalin known as "Stalin's Bunker" was constructed but never used. To mark its role as wartime national capital a special Revolution Day parade was held at the city's Kuybyshev Square on November 7, 1941, and since 2011 has been remembered in an annual military parade organised by the city government.[citation needed]