http://www.amazon.com/gp/product/offer-listing/6304468598//104-1918843-9931112?condition=all
It‘s also available as a torrent, if you don‘t feel like paying for it at all, and don‘t believe that copping free movies is a deadly brimstone fire **** thing. But hey, 7.95 isn‘t bad...
Also "The Arrow" is a good movie. Not really about the army, but it‘s well made and has some exciting bits.