The Japanese had "kamikaze" aircraft in southern Honshu and Kyushu which would have opposed operations Olympic and Coronet. It is unknown to what extent they could have opposed Soviet landings in the far north of Japan. For comparative purposes, about 1,300 Western Allied ships deployed during the Battle of Okinawa (April–June 1945). In total, 368 ships, including 120 amphibious craft, were badly damaged, and another 28, including 15 landing ships and 12 destroyers, were sunk, mostly by "kamikazes". The Soviets, however, had fewer than 400 ships, most of them not equipped for amphibious assault, when they declared war on Japan on 8 August 1945.