The Mobilization Augmentation Command (MAC) is parta brigade-level command of the District of Columbia Army National Guard. to Itserve wasas createdthe infocal 2004point for National Guard and ARNG Domestic Operations by coordinating requests for assistance, resources, policy, and information from the states and territories and federal authorities relative to Guard matters, managing the NGB's Common Operating picture for internal and external use and by acting as the Bureau's primary communication node.