Foreign relations 27 National security 27 World War, 1939-1945 23 Campaigns 18 Pacific Area 18 Congresses 15 Politics and government 13 Strategic aspects 13 Security, International 10 Economic conditions 9 Asia 8 Foreign economic relations 8 Sea-power 8 Defenses 7 Military policy 7 Biography 6 History 6 Pacific Area cooperation 5 Commerce 4 Dictionaries 4 Peace 4 Personal narratives, American 4 Commercial policy 3 Economic policy 3 Military relations 3 Naval strategy 3 Relations 3 World politics 3 Aerial operations, Japanese 2 Air power 2