This US Army training video focuses on creating field crafts while evading from the enemy and surviving in the wild. The key elements to survival are First Aid, Water, Shelter, Food, Fire, and Signaling. When surviving behind enemy lines, plan your course of actions and level your situation.
Without water your survival behind enemy lines or in the wilderness will dwindle. You cannot go without water for the most 3 days. The training video teaches how to do a Transpiration Bag, Above Ground Solar Still, Vegetation Bag, and Seep Hole.