Matches are necessary because the temperatures in the desert drop at night. Not only that, but you can use matches to burn tires or other items to signal for help. You should have a flashlight, a first aid kit and a blanket with you. Remember too, not to wander away from your vehicle – it’ll be harder for search teams to find you. But don’t sit in your vehicle because the temperatures inside can get too hot. Urban survival is different in that people aren’t conditioned for the break down of societal rules following a disaster. Urban survival can quickly break down to simply food, shelter and staying alive. Survival guides that discuss urban survival always mention food storage, a means to cook the food, a water filter or purification tablets and facial masks to protect against contaminants. Wilderness survival is different from desert and urban survival in that the location can offer special challenges depending on the area. You’ll need a waterproof backpack packed with the following items: first aid kit, food bars, matches, a compass, a knife, string, water purification tablets and a parachute cloth or one man tent.