Kuribayashi knew that Japan could not win the battle , but he hoped to inflict massive casualties on the American forces .
The American   and its Australian and British allies would reconsider carrying out the invasion of Japan Home Islands .
Kuribayashi knew that Japan could not win the battle , but he hoped to inflict massive casualties on the American forces , so that the United States and its Australian and British allies would reconsider carrying out the invasion of Japan Home Islands .