U.S. Air Force Maj. Jason Campbell, the chief engineer of NATO Training Mission Afghanistan's Regional Support Command Southwest, is congratulated by U.S. Army Col. Matt Redding, the commander of NTM-A RSC-SW, after getting promoted to lieutenant colonel at Camp Leatherneck, Helmand province, Afghanistan, March 30, 2012. Campbell's family and home unit watched via video teleconference from Charleston Air Force Base, S.C.