Stalin had agreed at the 1944 Moscow Conference to the United States having air bases near Vladivostok ( where six or seven large aerodromes had been built and reserved ) and the use of Petropavlovsk ( Kamchatka ) as a base ; he " virtually ignored " earlier proposals for a Soviet bombing force . However , despite an American team going to Moscow in December 1944 they failed to reach agreement . On 16 December 1944 General Antonov said that Soviet forces would need all their naval and air bases in the Maritime Provinces ' and American B-29s would have to be based far to the north of Vladivostok near the mouth of the Amur River in the Komsomolsk-Nikolaevsk area . It was decided to press for this at Yalta . At the Yalta Conference ( 1945 ) Stalin told Roosevelt that American B-29s would be based at the remote Komsomolsk-Nikolaevsk area . Antonov said that they would start preliminary base construction . But the proposal lapsed
Yalta Conference
Yalta Conference
Air raids on Japan