The name Larissa is a Russian baby name. In Russian the meaning of the name Larissa is: Protection. The name Larissa is an American baby name. In American the meaning of the name Larissa is: Protection. The name Larissa is a Greek baby name. In Greek the meaning of the name Larissa is: Citadel. The name Larissa is a Latin baby name. In Latin the meaning of the name Larissa is: Cheerful.
Hawaii Becomes a State. August 21, 1959. The U.S. had built a naval base in Hawaii at Pearl Harbor. Hawaii's importance as a military outpost became critical when Japan attacked Pearl Harbor on December 7, 1941. This brought the United States as well as Hawaii into World War II.
Quick Answer. The United States joined World War II as a response to the bombing of Pearl Harbor in Hawaii by the Japanese on Dec. 7, 1941. The country had been keeping itself isolated from the global war; however, after the attack, the country declared war on Japan on Dec. 8, 1941. Continue Reading.