151216-N-SD120-001 NAVAL BASE VENTURA COUTNY, Calif. (December 16, 2015) Seabees assigned to Naval Mobile Construction Battalion (NMCB) 5 Headquarters Company participate in a force march to acclimate to the protective gear and equipment they wear in contingency environment. NMCB 5 specializes in contingency construction, disaster response, and humanitarian assistance. (U.S. Navy photo by Mass Communication Specialist 1st Class John P. Curtis/Released)