Subject
- Bilateral relations6
- Second World War (1939-1945)6
- Concessions, Oil, Trucial Coast3
- Customs administration3
- Etiquette3
- Insurrections3
- Peacemaking3
- Boundary disputes2
- Civil defence2
- Fortifications2
- Gifts2
- Petroleum industry2
- Political activists2
- Regents2
- Reports2
- Slavery2
- Travel documents2
- War propaganda2
- Abduction1
- Accounts1