Navy Adm. James A. Winnefeld Jr., vice chairman of the Joint Chiefs of Staff, pins the Purple Heart on Sgt. Paul Roberts during a ceremony at the Warrior and Family Support Center on Fort Sam Houston in San Antonio, Oct. 12, 2012. Roberts was injured Nov. 24, 2011, while supporting Operation Enduring Freedom. Winnefeld also presented a Purple Heart to Spc. Jason Smith, who was injured July 25, 2012, while supporting OEF. After the ceremony, Winnefeld visited with wounded warriors in San Antonio Military Medical Center and Center for the Intrepid, a state-of-the-art rehabilitation center.