All aspects of military activities in Alaska and northwestern Canada from 1939-45 using 367 photographs to complement the narrative. The Battle of Attu was the second most costly battle as per troops Involved in the Pacific Theater for the United States during the war. The Battle of Attu was the first amphibious island Invasion by the U.S. Army In WorldWar II. The first bombing of the Japanese homeland by land based Navy bombers was from the Aleutian Islands. More than one billion dollars was spent on construction projects in Alaska and northwestern Canada by the U.S. Government in World War II. The Alaska-Highway-Canol Project was the largest overseas construction project during the war. The first invasion of U.S. soil since the War of 1812 happened in the Aleutian Islands In 1942. The first Japanese Zero captured intact in the war was on Atkun Island in July 1942. The longest continuous telephone line In the world was strung from Fairbanks, Alaska, to Edmonton, Alberta, along the Alaska Highway. The Battle of the Komandorskls In March 1943 was the longest continuous gunnery battle in modern naval history.