TRIBAL TALKS U.S. Marine Lt. Col. William McCollough, right, speaks with a leader in the Barackside tribe, Hamadulha Helmand, about district infrastructure improvements during a civil affairs group patrol in the Nawa district of Helmand province, Afghanistan, July 30, 2009. McCollough is the commander of 1st Battalion, 5th Marine Regiment. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 994910-A-OLL10-943.jpg Photo Gallery