Defense Commissary Agency

The Defense Commissary Agency (DeCA), headquartered at Fort Lee, Virginia, is an agency of the United States Department of Defense (DoD) that operates nearly 240 commissaries worldwide. American military commissaries sell groceries and household goods to active-duty, Guard, Reserve, and retired members of all eight uniformed services of the United States and eligible members of their families at cost plus surcharge, saving authorized patrons thousands of dollars compared to civilian supermarkets.

Source: Wikipedia — Defense Commissary Agency (CC BY-SA 4.0)