If you are stranded out in the wilderness without an adequate means to defend yourself – no knife and (gulp) no knife — learn to improvise.
Security is one of the most important aspects of survival, as weapons give you the ability to defend yourself and to kill wildlife for food.
Here are three weapons that you can make via improvisation:
Clubs. Clubs are not designed for throwing, but are designed to deliver heavy blows. This is the easiest weapon that you can make via improvisation. A good club will be smaller at the handle and then be larger and weightier on the end.
Get a firm piece of hardwood that is shaped similar to what you want, and then make it weightier on the end by tying a stone firmly with rope or vines. This will allow you to strike with the club with more force and deliver a more hammering blow to an opponent or prey. An alternative to this is to allow a wrapped stone to hang loosely from the end by about five or six inches, essentially making for a small, makeshift mace. This will be much more damaging than a more traditional club as the velocity of the stone is increased.