Subject
- Diplomacy51
- Treaties49
- First World War (1914-1918)38
- Bilateral relations35
- International relations33
- Concessions24
- Boundaries23
- Sovereignty20
- Railways19
- Imperialism17
- Mesopotamian Campaign (1914-1918)16
- Frontiers15
- Boundary disputes14
- Arms traffic13
- Imports12
- Legislation12
- Loans12
- Military occupation12
- Rebellions12
- River navigation12