“Army Gen. Keith B. Alexander, Cybercom’s commander, says the U.S. Cyber Command has activated the headquarters for its Cyber National Mission Force, the one of its three forces that would react to a cyber attack on the nation.
The other two forces are the Cyber Combat Mission Force that is assigned to the operational control of individual combatant commanders, and the Cyber Protection Force that helps operate and defend the Defense Department’s information environment.”
Source: Cybercom Activates National Mission Force Headquarters | DoDLive