Subject
Soviet Union Foreign relations
4
Japan Foreign relations
3
Khalkhin Gol, Battle of, Mongolia, 1939
2
Military art and science History
2
Tactics History
2
Boundary disputes
1
China Foreign relations
1
China History
1
Communism History
1
Espionage, Soviet History
1
Europe History
1
Europe Politics and government
1
France Politics and government
1
Germany Politics and government
1
Great Britain Politics and government
1
Hiroshima-shi (Japan) History
1
Japan Boundaries
1
Japan Commercial policy
1
Japan History
1
Japan Politics and government
1
Japan Territories and possessions
1
National security
1
National socialism
1
Norway Commercial policy
1
Political science
1
Russia Foreign relations
1
Russo-Japanese War, 1904-1905 Causes
1
Sino-Japanese War, 1937-1945
1
Soviet Union Boundaries
1
Soviet Union Commercial policy
1
Soviet Union History
1
Soviet Union Politics and government
1
Soviet Union Territories and possessions
1
Spies
1
Strategy
1
Technology transfer
1
United States Foreign relations
1
World War, 1939-1945
1
World War, 1939-1945 Campaigns
1
World politics
1