A BRIEF RESPITE U.S. Army Sgt. Thomas Calavera takes a moment to rest during a presence patrol in the Dora District of Baghdad, Dec. 28, 2007. Calavera is attached to the 2nd Squadron, 2nd Stryker Cavalry Regiment. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 218349-B-QBT62-417.jpg Photo Gallery