PAKTYA PATROL U.S. Army Spc. Robert Irwin conducts a security patrol in Afghanistan's Paktya province, Jan. 30, 2012. Irwin is an infantryman assigned to Dog Company, Task Force Gold Geronimo, part of Spartan Brigade. SHARE IMAGE: Download Image: Full Size (0.05 MB) Photo By: VIRIN: 438129-B-KKW43-493.jpg Photo Gallery