PNP272522 Japanese aircraft carrier \'Akagi\', flagship of Admiral Nagumo, Pearl Harbor, 7th December, 1941 (b/w photo) by Japanese Photographer (20th century); Private Collection; (add.info.: Admiral Chuichi Nagumo (1887-1944); On the morning of Sunday, 7th December, 1941, Japanese forces attacked the American naval base at Pearl Harbor, southern coast of Oahu island, Hawaii, U.S.; this action precipitated U.S. entry into World War II (1939-1945);); Peter Newark Military Pictures; Japanese, out of copyright.