Subject
- Diplomacy2
- Economic relations2
- Internal politics2
- International relations2
- Political conflicts2
- Political intelligence2
- Territorial disputes2
- Trade missions2
- Foreign policy1
- Medical treatment1
- Military campaigns1
- Military intelligence1
- Naval personnel1
- Naval supplies1
- Negotiation1
- Siege of Herat (1837-1838)1
- Steamships1
- Trade routes1