The Second Attack on Hawaii – Operation K

Operation K, was a Japanese naval operation in World War II, intended as a reconnaissance of Pearl Harbor and disruption of repair and salvage operations following the surprise attack on December 7, 1941. It culminated on March 4, 1942, with an unsuccessful attack carried out by two Kawanishi H8K “Emily” flying boats. This was the longest distance ever undertaken by a two-plane bombing mission, and the longest bombing sortie ever planned without fighter escort.