Subject
- Second World War (1939-1945)9
- Reports7
- Airlines4
- International relations4
- Military intelligence4
- Bilateral relations3
- Petroleum industry3
- Political crises3
- Strikes3
- Wireless telegraphy3
- Air force2
- Air mail2
- Aircraft2
- Civil aviation2
- Consular services2
- Diplomacy2
- Diplomatic service2
- Embassies and consulates2
- Iran-Azerbaijan Crisis (1946)2
- Propaganda2