For us civilians, the benefits of these pre-packed meals allow us the luxury of convenience regardless of the situation, even at home if the wife has gone out for the night and you can't be bothered cooking. For the adventurers among us, we can go on the weeks camping trip deep in to the wilderness knowing that we have enough food in our packs and that a lack of fire, electricity or an overabundance of wind and rain we can be assured that with a chemical heated pack we are still in for a warm meal at the end of the day.