One of the new Joint Capability Technology Demonstrations announced for 2009 by the Office of the Undersecretary of Defense for Acquisition, Technology and Logistics is an attempt to find the answer to the question of how to “fight through” an interruption or attack on the DOD’s Global Information Grid network:

Mission Assurance Decision Support System — combines hardware and software system to conduct real-time and predictive assessments on the operational impacts due to a disruption (natural or man-made) in the global information grid and its supporting commercial infrastructure.
– Combatant Command/User: STRATCOM
– Transition Service/Agency: Defense Information Systems Agency