Photos

First Lt. Stephen Black (left), operations officer, Headquarters Detachment, and Sgt. Christopher Martinez, motor transport operator, Transportation Support Detachment, both with Combat Logistics Battalion 15, 15th Marine Expeditionary Unit, work out inside one of three fitness rooms aboard the USS Rushmore, Aug. 18. Marines from the MEU exercise regularly during the unit's final training evolution, Certification Exercise. CERTEX differs from previous exercises because Marines and Sailors react to unknown scenarios using the Marine Corps Rapid Response Planning Process.