RUBY READY U.S. Army Sgt. Tyler Barriere works with Ruby, a military working dog, as part of a demonstration to Iraqi police trainees at the Diwaniyah Police Academy in Diwaniyah, Iraq, Feb. 9, 2009. Barriere is assigned to the 4th Infantry Division's 2nd Battalion, 2nd Brigade Combat Team. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 682725-J-CEK36-172.jpg Photo Gallery