History 987 Politics and government 560 Foreign relations 535 World War, 1939-1945 482 Vietnam War, 1961-1975 228 Church and state 176 Heads of state 146 more ... Campaigns 143 Relations 139 Jews 129 Iraq War, 2003-2011 109 Holocaust, Jewish (1939-1945) 86 Social conditions 81 Influence 78 World War, 1914-1918 77 Public opinion 75 Aerial operations, American 73 Ethnic relations 67 World politics 66 Diplomatic history 63 Civilization 61 Soldiers 56 Political aspects 55 Regimental histories 53 Prisoners of war 52 Military policy 46 Cold War 43 Secret service 42 Armed Forces 41 Holocaust survivors 40 less ...