Everyone knows the lowdown on life in the wild: you can survive for a while without food, but not for long without water. Here a British Army fusilier shows you how to capture rain water using a trap he’s built.

Everyone knows the lowdown on life in the wild: you can survive for a while without food, but not for long without water. Here a British Army fusilier shows you how to capture rain water using a trap he’s built.
Then-Corporal Kenneth “Rock” Merritt poses for a photo. (Courtesy Photo) During World War II, Kenneth …