The next day was quiet, with the Indianapolis making about 17 knots through swells of five or six feet in the seemingly endless Pacific. But now, on July 28, the Indianapolis sailed from Guam, without an escort, to meet the battleship USS Idaho in the Leyte Gulf in the Philippines and prepare for an invasion of Japan. On August 6, 1945, the weapon would level Hiroshima.
The USS Indianapolis had delivered the crucial components of the first operational atomic bomb to a naval base on the Pacific island of Tinian.
