Subject
- Abyssinian Expedition (1867-1868)1
- Administration3
- Administrative and political divisions1
- Aerial navigation3
- Aerial photography1
- Aerial reconnaissance1
- Aggression and violence1
- Agriculture3
- Airspace (international law)3
- Ammunition1
- Anglo-Persian War (1856-1857)1
- Annexation (International law)1
- Arab nationalism2
- Arbitration2
- Armistices1
- Arms traffic1
- Army1
- Articles1
- Assassination2
- Atrocities2