Subject
- Equipment[remove]10
- Petroleum industry4
- Second World War (1939-1945)4
- Supplies3
- Exports2
- Military equipment2
- Military logistics2
- Administration1
- Alliances1
- Colonial administration1
- Customs duty1
- First Anglo-Afghan War (1838-1842)1
- Fossil fuels1
- Military expenditure1
- Military operations1
- Petroleum products1
- Political intelligence1
- River navigation1
- Slave trade1
- Travel1