I guess 3 main periods/countries:
1. UK during late 60s-early 80s - My schooldays and the kit i remember seeing on the air base I grew up on (Who can resist a Vulcan or Buccaneer?

)
2. Angolan Civil war (70s/80s) - loads of differing forces, nationalities and tech levels, something for everyone and great for trying new tactics, etc against a wide range of opponents!
3. UK (now-2020) - often "what if" type campaigns, ie refighting the Falklands war with modern kit, etc.
The joy of this game is the almost infinite variety!
