If this did not drive the Allies away, they planned to send another 3,500 kamikazes along with 5,000 "Shin'yō" suicide motorboats and the remaining destroyers and submarines—"the last of the Navy's operating fleet"—to the beach. If the Allies had fought through this and successfully landed on Kyūshū, 3,000 planes would have been left to defend the remaining islands, although Kyūshū would be "defended to the last" regardless. The strategy of making a last stand at Kyūshū was based on the assumption of continued Soviet neutrality.