World War, 1914-1918 History 162 Campaigns 88 Causes 52 Soldiers 47 Foreign relations 43 Politics and government 41 more ... Guerre mondiale, 1914-1918 37 World War, 1939-1945 24 Naval operations 23 Diplomatic history 20 Influence 19 Social aspects 18 Women 18 Social conditions 17 British 15 Peace 14 Archaeologists 13 Histoire 13 Literature and the war 12 Middle East specialists 11 War 11 Weltkrieg 11 History and criticism 10 Military campaigns 10 Social life and customs 10 History, Military 9 Submarine 9 Arabs 8 Economic aspects 8 less ...