Sgt. Jonathan Ayala, cyber network operator, hands radio antenna equipment to Staff Sgt. Christopher M. Phibbs, cyber network chief, both with the 15th Marine Expeditionary Unit, during a communications exercise aboard Camp Pendleton, Calif., Jan. 6, 2014. The exercise is designed to prepare 15th MEU Marines for Exercise Iron Fist. (U.S. Marine Corps photo by Cpl. Emmanuel Ramos/Released)
