Microsoft just scored a whopping three-year software-licensing deal that will put Windows 8 into the hands of 75 percent of people who work for the United States Department of Defense...

This is the first time that three major DOD agencies—the Army, Air Force, and Defense Information Systems Agency— have entered into a single agreement with Microsoft...

http://www.businessinsider.com/microsoft-windows-8-department-of-defense-2013-1