While at anchor off Charleston, S.C., the Steam Sloop of War USS Housatonic is attacked by the Confederate submarine H.L. Hunley using a spar torpedo. USS Housatonic is recorded as the first warship to be sunk by a submarine.
The first Construction Battalion (Seabees) arrives in the Pacific during World War II at Bora Bora, Society Islands.
USS Nicholas (DD 449) sinks the Japanese submarine I-11 in the Marshall Islands.
During Operation Hailstone, aircraft from the nine aircraft carriers of Task Force 58 attack the Japanese fleet at Truk. During the 2-day strike, 33 Japanese vessels are destroyed and nine more damaged.
While wounded and gravely weakened, Medal of Honor Recipient Lt Rufus G. Herring takes the helm of the Landing Craft Infantry Gunboat (LCI(G)-449), which was heavily hit by Japanese counter-fire, rallies his men, and keeps the ship in action protecting UDT swimmers.