World War, 1914-1918 History 9 Politics and government 9 Causes 4 Guerra mundial 4 Historia 4 Campaigns 3 Máis ... Guerra 3 Guerra Mundial, 1914-1918 3 Propaganda 3 Social conditions 3 Soldiers 3 War 3 World War, 1939-1945 3 Authors, Spanish 2 Civilization 2 Foreign relations 2 Guerra mundial, 1914-1918 2 Imperialism 2 Influence 2 Política y gobierno 2 Public opinion 2 Veterans 2 Acciones voluntarias 1 Alemania 1 Argentina 1 Autores españoles 1 Bachelors 1 Brothers 1 Butchers 1 menos ...