History 57 Politics and government 35 Foreign relations 19 Biography 18 Armed Forces 14 National security 13 Economic conditions 12 World War, 1939-1945 12 Military policy 10 Economic policy 8 Personal narratives, Australian 8 Sea-power 8 Campaigns 7 Asia 6 Defenses 6 Foreign economic relations 6 Vietnamese Conflict, 1961-1975 6 20th century 5 Addresses, essays, lectures 5 International relations 5 Management 5 Pacific Area 5 Australia 4 Congresses 4 Great Britain 4 International cooperation 4 Military relations 4 Peace 4 Security, International 4 Social conditions 4