Joint Force Headquarters National Capital Region (JFHQ-NCR) is directly responsible for the homeland security and defense of the Washington D.C. area as well as surrounding counties in Virginia and Maryland. Primarily made up of joint military units within the National Capital Region, the JFHQ-NCR assists federal and local civilian agencies and disaster response teams in the event that the capital area's security is or possibly could be breached by acts of terrorism.Officially activated on September 22, 2004, JFHQ-NCR is part of United States Northern Command.