History History -- 5 Civilization 3 Foreign relations -- 2 Politics and government -- 2 Relations -- 2 World War, 1939-1945 -- 2 more ... Atomic bomb -- 1 Biological warfare -- 1 Bombardment, 1945 1 Boundaries 1 Boundary disputes 1 Civil rights -- 1 Commercial policy -- 1 Diplomatic history 1 Economic conditions 1 Economic policy -- 1 Foreign relations 1 Historical geography 1 Homeless persons -- 1 Homelessness -- 1 Industrial management -- 1 International status 1 Merchants -- 1 Military relations -- 1 Occupied territory 1 Political activity -- 1 Relations 1 Sino-Japanese Conflict, 1937-1945 -- 1 Social conditions -- 1 less ...