Subject
- Diplomacy68
- Treaties52
- Bilateral relations38
- First World War (1914-1918)38
- Concessions25
- International relations25
- Boundaries23
- Imperialism22
- Sovereignty19
- Frontiers17
- Mesopotamian Campaign (1914-1918)17
- Arms traffic14
- Boundary disputes14
- River navigation14
- Loans13
- Military occupation13
- Railways13
- Rebellions13
- Legislation12
- Russo-Persian War (1826-1828)12