RURAL FOLK: BEWARE THE MASS URBAN EXODUS
Matt Bracken wrote, "Have a plan to keep this from happening in your AO, even if it means temporarily blocking bridges or other choke points."
No need to block bridges or roads just confront them with a 12 gauge shotgun while you have sniper over watch off to both sides of you with scoped battle rifles and ask who wants to die first if they don't leave right now.