Run when you can, fight when you have to. If you have time, fight on your terms and control the contact. People will revert to the "might is right " doctrine very quickly as this is the
defacto condition for human society. The only thing humans understand in this situation is fear, and they will use this fear to overwhelm people. You have to make them fear you more than you fear them. Put a few crucified headless corpses at your boundary and I guarantee people will think twice about coming down your road
Midnitemo, as an ex British soldier you know we never withdraw, we advance to the rear old boy.