World War, 1914-1918 History 2,200 Campaigns 1,271 Guerre mondiale, 1914-1918 735 Politics and government 602 Regimental histories 574 Causes 551 more ... Foreign relations 452 World War, 1939-1945 407 Soldiers 353 Economic aspects 267 Influence 258 Naval operations 250 Peace 244 Diplomatic history 241 Literature and the war 208 History and criticism 195 Social aspects 191 Aerial operations 177 Histoire 176 Social conditions 175 Territorial questions 174 War 155 Women 149 History, Military 147 Weltkrieg 135 Publications by Graduates 116 World politics 111 Posters 110 Economic conditions 105 less ...