PORT HUENEME, Calif. (Sept. 1, 2015) – Utilitiesman 3rd Class Raul Arce, assigned to Naval Mobile Construction Battalion (NMCB) 4, checks power and fuel levels during a 48-hour Mount-Out Exercise (MOX) in Port Hueneme, Calif., Sept. 1. The MOX simulates one of the core capabilities of a construction battalion to deploy an 89-person air detachment, along with construction equipment, within 48-hours to any required location around the globe. ( Navy photo by Mass Communication Specialist 1st Class Rosalie Chang/ Released)

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