U.S. Army Col. D. A. Sims (left), commander of the

U.S. Army Col. D. A. Sims (left), commander of the U.S. 2nd Cavalry Regiment, speaks along-side Australian Lt. Col. Michael T. Bye, commanding officer of the Australian 2nd Cavalry Regiment, during a breakfast-gathering Nov. 19, 2013, at Kandahar Airfield, Afghanistan. Leadership of the U.S. and Australian 2nd Cavalry Regiments held a ceremony to meet and exchange gifts before signing a friendship charter formalizing the similar designation and shared heritage of the two units. (U.S. Army Photo by Spc. Joshua Edwards)