What was the duration of the war that was in progress when the USS McAnn first served in the Atlantic Ocean?
World War II World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although related conflicts began earlier. It involved the vast majority of the world's countries—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis. It was the most widespread war in history, and directly involved more than 100 million people from over 30 countries. In a state of total war, the major participants threw their entire economic, industrial, and scientific capabilities behind the war effort, erasing the distinction between civilian and military resources.
SS Leviathan SS Leviathan, originally built as Vaterland, was an ocean liner which regularly crossed the North Atlantic from 1914 to 1934. The second of three sister ships built for Germany's Hamburg America Line for their transatlantic passenger service, she sailed as "Vaterland" for less than a year before her early career was halted by the start of World War I. In 1917, she was seized by the U.S. government and renamed "Leviathan". She would become known by this name for the majority of her career, both as a troopship during World War I and later as the flagship of the United States Lines.