Subject
- Military intelligence[remove]89
- Military supplies34
- Military logistics33
- Military operations11
- Railways11
- Railway construction10
- Military communications9
- Bolshevism8
- Surveys8
- Military strategy7
- Food supply6
- Geographical data6
- Political intelligence6
- Shipping6
- Tribes6
- Imperialism5
- Military administration5
- Reports5
- War casualties5
- Demobilisation4