The folks at Proper Survival asked what my #1 tip for survival was. Here is the answer.
My number #1 tip is to get into shape.
We could go into the weeds of my beliefs or different fitness plans but the endstate is to 1) be able to move on foot light (probably jogging/ running) and while carrying a load for reasonable distances. 2) Be able to lift heavy things. 3) Be able to move your body with individual equipment (fighting load) over and around obstacles. Training should generally mirror these endstates. While I didn't discuss appearance as it doesn't matter (function matters, incidentally it also drives form/ appearance) it's pretty much impossible to succeed by any reasonable measure at #1 and #3 without being at or close to a healthy body weight.