What was the duration of the war that was in progress when the USS McAnn first served in the Atlantic Ocean?
USS McAnn USS "McAnn" (DE-179) was a "Cannon"-class destroyer escort built for the United States Navy during World War II. She served in the Atlantic Ocean and provided escort service against submarine and air attack for Navy vessels and convoys.
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.