History History -- Communism -- 2 Foreign relations -- 2 Armed Forces -- 1 Arms transfers -- 1 Biography. -- 1 more ... Biological warfare -- 1 Chinese -- 1 Commerce -- 1 Economic conditions -- 1 Explorers -- 1 Military assistance, Soviet 1 Military relations -- 1 Ming dynasty, 1368-1644 1 Political parties -- 1 Procorement Procuremenrt -- 1 Sino-Japanese Conflict, 1937-1945 -- 1 Social conditions -- 1 less ...