Many people believed that Project Hula would have given the Soviet Union the ability to invade the Japanese home islands. However, many historians agreed it was still not enough for the Soviets to pose a serious threat to Tokyo. As of 20 December 1945, 3,741 American lend-lease ships were given to the Soviets, 36 of which were capable of mounting an invasion of Japan. This was clearly not enough to pose a large threat to Japanese forces in the mainland. Given how the Soviets conducted their invasions of southern Sakhalin and the Kuril Islands, with limited U.S. Navy ships and landing craft, it was likely that Soviets would not have succeeded in taking entire Japanese-occupied territories, including Hokkaido.