380th Expeditionary Communications Squadron client system technicians Senior Airman Ashley Yarbrough (middle) reimages a computer while Airman 1st Class Angela George (right) installs and updates software on a computer, Nov. 28, 2018 at Al Dhafra Air Base, United Arab Emirates. (U.S. Air Force photo by Tech. Sgt. Darnell T. Cannady) Air Force moves 555,000 users to Office 365 cloud email The move is part of the military branch's $1 billion Cloud Hosted Enterprise Services (CHES) program. Jan 28, 2019 By Billy Mitchell