151105-N-AT895-310 WASHINGTON (Nov. 5, 2015) Master Chief Petty Officer of the Navy (MCPON) Mike Stevens, Hospital Corpsman 1st Class Wayne Papalski, Hospital Corpsman 1st Class Joshua Van Horn and Chief of Naval Operations (CNO) Adm. John Richardson pose for a photo at the 2015 Angels of the Battlefield gala. This event honors medics, corpsmen and pararescuemen who administer lifesaving medical treatment and trauma care of the battlefield. (U.S. Navy photo by Mass Communication Specialist 1st Class Nathan Laird/Released)