Subject
- First World War (1914-1918)98
- Diplomacy74
- Mesopotamian Campaign (1914-1918)33
- Frontiers32
- Treaties32
- Concessions30
- International relations26
- Arms traffic24
- Bilateral relations24
- Colonial administration23
- Expenditure22
- Imperialism21
- Railways21
- Rebellions21
- Boundaries20
- Loans19
- Military operations19
- Armed forces16
- Trade (practice)16
- Military occupation15