WWII Battleship is a term used to describe a type of warship used during World War II. The USS Iowa (4 letters) and USSIowa (7 letters) are two examples of such ships. The USS Iowa was an American battleship that served in the United States Navy from 1943 to 1990, while USSIowa was a Soviet battleship that served in the Soviet Navy from 1944 to 1956. Both ships were heavily armed and played a major role in the war.