Subject
- Diplomacy647
- Russo-Persian War (1826-1828)278
- Treaties244
- Bilateral relations238
- Frontiers165
- Military operations147
- Slave trade140
- First World War (1914-1918)138
- Military intelligence124
- Trade (practice)124
- Political intelligence120
- International relations118
- Communication113
- Second World War (1939-1945)112
- Colonial administration105
- Reports102
- Consular services96
- Tribal relations96
- Peace treaties92
- Diplomatic service88