“Back in the 2005 timeframe, Northrop Grumman had hundreds of data centers and consolidated them down to five data centers in 2011,” says Joe Cloyd, Director of Technology, Defense Cyber Security and Enterprise Services at Northrop Grumman (www.northropgrumman.com). “In our next round of Embedded Computer consolidation we will go down to three enterprise data centers. The DoD will eventually do this as well, consolidating each respective network, and far down the road of embedded computer a totally segregated approach to having multiple networks with duplication.”
refer to : http://mil-embedded.com/articles/cloud-security-the-dod/