During world war ii, why did japan strongly and passionately defend iwo jima?

Which describes the main effect of the palmer raids? they were successful in uncovering communist operatives in the united states. they show the american public that there was little evidence of communism in the country. they resulted in the deportation of suspected radicals based on little evidence. they brought about the end of the red scare by clearing several supposed radicals.

How would europe benefit economically from greater unity

What was america's response to the holocaust before the war? what could the us have done differently?