U.S. Army Pvt. 1st Class Steven Sherwood, left, and Private 2nd Class Orlando Nicholas, assigned to the 441st Transportation Company, 1189th Transportation Brigade, Deployment Support Command, tighten the chains securing a vehicle to the deck of a land ship trainer during exercise SeaPort Operations Company 14-1 (SPOC) at Joint Base Langley Eustis, Va., Dec. 13, 2013. The exercise refreshes and trains skills of cargo specialists and transportation coordinators.