Nihon, Nippon, Japan - a constitutional monarchy occupying the Japanese Archipelago; a world leader in electronics and automobile manufacture and ship building

island - a land mass (smaller than a continent) that is surrounded by water

amphibious assault - an amphibious operation attacking a land base that is carried out by troops that are landed by naval ships

Second World War, World War 2, World War II - a war between the Allies (Australia, Belgium, Bolivia, Brazil, Canada, China, Colombia, Costa Rica, Cuba, Czechoslovakia, Dominican Republic, El Salvador, Ethiopia, France, Greece, Guatemala, Haiti, Honduras, India, Iran, Iraq, Luxembourg, Mexico, Netherlands, New Zealand, Nicaragua, Norway, Panama, Philippines, Poland, South Africa, United Kingdom, United States, USSR, Yugoslavia) and the Axis (Albania, Bulgaria, Finland, Germany, Hungary, Italy, Japan, Rumania, Slovakia, Thailand) from 1939 to 1945

Pacific, Pacific Ocean - the largest ocean in the world