The following are ideas and tips pulled together by army buddies and rangers. They are smart men and know their stuff.  They talk about “force multipliers” and “battlespace” and while it might seem confusing at first this should help:

What is a force multiplier?
A force multiplier, or combat multiplier, is something that allows you to fight like you were a larger group. Because a lot of preppers either go it alone or with their family, this an essential part of your plan to defend your home or bug out location. If you’re one of these people, you should seriously consider joining up with a group. Either way, a combat multiplier will help whatever size element you’re using.
There are many types of force multipliers out there, from psychological operations to better weapons to better tactics to better training. Today we’re going to be talking about prepping your geographical battlespace.
What is a battlespace?
A battlespace is exactly what it sounds like: the place where you fight. If you have a ranch or a bug out location, your battlespace is any area that you or your enemy can control. Today, we’re not only going to talk about controlling the battlespace, but prepping it so you can more easily fight against a group. We’re talking about how you can control the space that your enemy might find himself on.
Ideally, you’ll be in a rural location that you can do with what you like and have an area to work with. If you’re in a city, or even a suburb, this is more difficult but not impossible. There are some concepts that will translate to urban dwellings. You just have to think more about it.
If you have a fairly large area and group, once you’ve set all this up, you should have some sort of map that you can look at that shows everything in your area. A 3d sand table would be pretty awesome but at least have a map. That way not only can you see what’s going on with the map as you’re figuring out what to do, you can more easily explain to others what they need to do and where.
Preparing for a siege
One of the best methods to defeat someone who’s holed-up in a castle is to lay siege.
Let’s say you have a cabin in the woods. This is a pretty common idea for preppers and I like cabins. You have this awesome cabin in the woods and you stock up on food, medicine, ammo and other things like a good prepper does.
You decide that at some point, you may have a group of bad guys come and try to take all this prepper goodness or hurt your family so you shore up the walls with something to stop bullets and put metal plates on the windows and doors.
What happens if they decide to just camp outside and wait for you to come out?
You may have a year’s supply of food for your family and an endless supply of water but can you take care of all your waste? If you’re actively fighting, do you have enough ammo to hold out?
The first thing you need to do is set things up so that you could have an extended stay in your home. It may actually be just a bad winter that keeps you in for an extended stay but it’s the same thing. You’re fighting mother nature instead of a bunch of thugs.

To learn more, including tips on tunnels and cover, sniper’s hides, and fox holes, go to Graywolf Survival. They also have great segments about controlling the high ground and controlling your enemy’s movements!

If this sounds like maneuvers for in a war zone, you are not far off. While we would never want to hear about bombs being imploded because a neighbor wants your tin of green-beans or chili, we have to understand that the frantic are willing to do much to survive. Those you thought good people will either, in a desperate situation, wither away or come at those who have thought ahead with anything at their disposal. It’s a sad combination of fear, anger, and despair.

And, while you are thinking of ways to keep you and your family safe, many are thinking of ways to cut through your defenses. It helps to stay a few steps in front of those who want to bring you down! That, in a SHTF scenario, is survival.