Subject
- River navigation[remove]33
- Military supplies10
- Military logistics9
- Railway construction6
- Prisoners of War5
- Administration3
- Cars3
- Aeroplanes2
- Battles2
- Frontiers2
- Military equipment2
- Military personnel2
- State visits2
- Treaties2
- Armed forces1
- Artillery1
- Boundary disputes1
- Camels1
- Canal navigation and inland waterways legislation1
- Climate1