"Even after they were checked at Midway and Guadalcanal in 1942, many Japanese remained convinced that the Anglo-American enemy was indeed psychologically incapable of recovering In actuality, the contrary was true, for the surprise attack provoked a rage bordering on the genocidal among Americans. Thus, Admiral William Halsey, soon to become commander of the South Pacific Force, vowed after Pearl Harbor that by the end of the war the Japanese language would be spoken only in hell, and rallied his men thereafter under such slogans as "Kill Japs, kill Japs, kill more Jap." Or as the U.S. Marines put it in a well-known variation on Halsey's motto: "Remember Pearl Harbor- keep 'em dying.""