Command Sgt. Major Gary Mayo conducts a combined combat patrol. U.S. Army Command Sgt. Major Gary Mayo, of the 4th Battalion, 23rd Infantry Regiment, 5th Brigade Combat Team, 2nd Infantry, conducts a combined combat patrol with the Afghan National Army in the Shajoy district of the Zabul province, Afghanistan, on Nov. 20, 2009. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 805744-R-CPV72-940.jpg Photo Gallery