This belief was so well indoctrinated that even as Allied victories overwhelmed the ability of the Japanese government to cover them up with lies, many Japanese refused to believe that "God's country" could be defeated. The military government likewise fought on hopes that the casualty lists would undermine the Allied will to fight. General Ushijami, addressing his troops in Okinawa, told them their greatest strength lay in moral superiority. Even as American forces proceeded from victory to victory, Japanese propaganda claimed military superiority. The attack on Iwo Jima was announced by the "Home and Empire" broadcast with uncommon praise of the American commanders but also the confident declaration that they must not leave the island alive. The dying words of President Roosevelt were altered to "I have made a terrible mistake" and some editorials proclaimed it a punishment of Heaven. American interrogators of prisoners found that they were unshakable in their conviction of Japan's sacred mission. After the war, one Japanese doctor explained to American interrogators that the people of Japan had foolishly believed that the gods would indeed help them out of their predicament.