Subject
- Reports24
- Colonial administration18
- Foreign policy17
- Railways14
- Military intelligence13
- International relations12
- Trade routes9
- Telegraph lines8
- Colonial policy7
- Geography7
- Military operations7
- Archaeology6
- Forts6
- History6
- Propaganda6
- Trade (practice)6
- Treaty of Sèvres (1920)6
- Frontiers4
- Historical research4
- Meetings4