Why was the Battle of the Coral Sea so crucial for the United States?

It was the first pure carrier-versus-carrier battle in history as neither surface fleet sighted the other. Though a draw, it was an important turning point in the war in the Pacific because, for the first time, the Allies had stopped the Japanese advance.

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.

it would be that mali has the worst literacy rate than the others