On 13 January 2015 Company D 2d Battalion was activated as part of the 4th BSTB, 4th Brigade Combat Team, 10th Mountain Division in a ceremony on Fort Polk's Mountain Field. Company D was being activated as a "provisional" company, attached to the 4th Brigade Special Troops Battalion, in support of a security support tasking for SOUTHCOM. The mission will consist of CPT Andrews as the D Co Commander, SFC Ramos as the 1SG/NCOIC, and about 50 Soldiers selected from 2-4 IN, 2-30 IN & 3-89 CAV, all units from within 4-10 MTN. They performed security duties in support of humanitarian operations, within the SOUTHCOM AOR. Their mission is from FEB-AUG 2015, and when they return to Fort Polk, they will "officially" become part of 2d Battalion 2d Infantry. In February Company D, 2d Battalion deployed with the USNS Comfort on a seven-month humanitarian mission to the Caribbean.