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Subject
- Foreign trade21
- Treaties16
- Tariffs and duties14
- International relations13
- Territories and possessions13
- Exports11
- Conferences10
- Medical personnel10
- External debt9
- Imports9
- International claims9
- British-owned territories8
- Foreign laws8
- Railroads8
- Textile industry8
- Trade agreements8
- Mines and mineral resources7
- Wages and salaries7
- Annexation (International law)6
- Arms control6