I think the best solution to perimeter defense would be to take a page out of medieval times and build small, fortified villages or hamlets and take refuge behind the walls at night and work in the fields by day.
The best way to patrol and keep the fields safe by day would likely through watchtowers and patrols on horseback. Horses incidentally, would become very, very valuable. If you live in a cold area as I do, wood burning stoves would be in high demand. And yeah...you want both MD's and veterinarians in your group. Of course, the guys in the watchtowers should have high-powered rifles (if they can't have machine guns) and the patrols, be they on horse or foot would need to be armed as well. Reconnaissance, intel gathering and emergency planning would also be essential to survival.
Having said all these things though, it's worth noting that the native tribes that populated the St-Lawrence Valley, essentially where I live, survived in North America for millennia without the modern tools and conveniences we have today. The Iroquoian tribes that lived around here lived in long houses made of wood and bark, had to resort to open fires for cooking and warmth, and lived off the land. But we just don't have the skills and knowledge they once did, and neither to their descendants.
The best way to patrol and keep the fields safe by day would likely through watchtowers and patrols on horseback. Horses incidentally, would become very, very valuable. If you live in a cold area as I do, wood burning stoves would be in high demand. And yeah...you want both MD's and veterinarians in your group. Of course, the guys in the watchtowers should have high-powered rifles (if they can't have machine guns) and the patrols, be they on horse or foot would need to be armed as well. Reconnaissance, intel gathering and emergency planning would also be essential to survival.
Having said all these things though, it's worth noting that the native tribes that populated the St-Lawrence Valley, essentially where I live, survived in North America for millennia without the modern tools and conveniences we have today. The Iroquoian tribes that lived around here lived in long houses made of wood and bark, had to resort to open fires for cooking and warmth, and lived off the land. But we just don't have the skills and knowledge they once did, and neither to their descendants.