Of the of US lend-lease aid provided to Russia, (45 per cent) were sent through Iran. In addition to the Persian Corridor the Americans used Arctic Convoys to the ports of Murmansk and Archangelsk and Soviet shipping carried supplies from the west coast of the US and Canada to Vladivostok, in the Far East, since the Soviets were not at war with Japan until August 1945. The Persian Corridor was the route for of the cargo. That was not the only allied contribution via the Persian Corridor. About of shipborne cargo from Allied sources were unloaded in the Corridor, most of it bound for the Soviet Union and some of it for British forces, under the Middle East Command, or for the Iranian economy, which was sustaining the influx of tens of thousands of foreign troops and Polish refugees. Also, supplies were needed for the development of new transport and supply facilities in Persia and in the Soviet Union. The tonnage figure does not include transfers of warplanes via Persia.
