. . . . . . . . "Action off Bougainville" . "First Battle of Rabaul" . "17bombers" . "2 fighters destroyed" . . . "action off Bougainville" . . "1aircraft carrier" . . . . "10destroyers" . "4cruisers" . . "5scouts" . . . "United States" . "Japan" . "1 killed" . "19fighters" . "American raid turned back" . "aborted raid on Rabaul" . "Japanese air group takes heavy losses;" . . . "1942-02-20" . . . . . . . "Action off Bougainville" .