Subject
- Foreign relations16
- Military affairs14
- Bilateral relations12
- Colonial administration8
- Customs administration8
- Political affairs8
- Diplomacy7
- Financial administration7
- Slave trade7
- Border disputes5
- Piracy5
- Trade (practice)5
- Arms traffic4
- Concessions4
- Military operations4
- Telegraph lines4
- Administration3
- Arms sales3
- Frontiers3
- International relations3