U.S. Army Lt. Col. Christopher M. Stallings accepts command of the 1st Battalion, 222nd Aviation Regiment from Col. Julius A. Rigole, 128th Avn. Brigade commander, during a change of command ceremony at Fort Eustis, Va., June 20, 2014. The 1-222nd Avn. Reg. was transferred to the Training and Doctrine Command and provisionally attached to the U.S. Army Aviation Logistics School on May 20, 2008, at Fort Eustis. (U.S. Air Force photo by Staff Sgt. Katie Gar Ward/Released)

From left, U.S. Army Col. Julius A. Rigole, 128th Aviation Brigade commander, Lt. Col. Christopher M. Stallings, 1st Battalion, 222nd Aviation Regiment incoming commander, Lt. Col. Michael R. Williams, 1-222nd Avn. Reg. outgoing commander, and Sgt. Maj. Russell Merchant, 1-222nd Avn. Reg. sergeant major, prepare to exchange the unit colors during the 1-222nd Avn. Reg. change of command ceremony at Fort Eustis, Va., June 20, 2014. The 1-222nd Aviation Regiment’s mission is to continuously conduct advanced individual training to ensure students’ transition to the operational Army immediately contributes to combat readiness. (U.S. Air Force photo by Staff Sgt. Katie Gar Ward/Released)

U.S. Army Lt. Col. Christopher M. Stallings, 1st Battalion, 222nd Aviation Regiment incoming commander, provides remarks during the 1-222nd Avn. Reg. change of command ceremony at Fort Eustis, Va., June 20, 2014. Stallings’ previous assignment was as professor of military science at Duke University in Durham, N.C. (U.S. Air Force photo by Staff Sgt. Katie Gar Ward/Released)