The Aleutian Islands campaign was a military campaign fought between 3 June 1942 and 15 August 1943 on and around the Aleutian Islands, part of the US Territory of Alaska, in the American Theater of World War II during the Pacific War. It was the only military campaign of World War II fought on North American soil.
The islands' strategic value was their ability to control Pacific transportation routes. U.S. General Billy Mitchell told the U.S. Congress in 1935, "I believe that in the future, whoever holds Alaska will hold the world.