Okay, first let me say that this is just plain weird. The recipe as described is hilarious...but you have to think of the lengths people go through to get alcohol is funny.
Soldiers, much like prisoners in a lot of ways, have come up with various ways to produce booze over the years. This is the first prison concoction that I have heard of...
Go here to see how make your own Pruno - And May God Have Mercy On Your Soul.
Update: What? No comment from the brew-master known as the Physics Geek?