U.S. Air Force airmen from the 31st Communications Squadron mission defense team (MDT) conduct cyber threat operations at Aviano Air Base, Italy, Aug. 29, 2019. Mission defense teams were first introduced in 2014 as part of the Cyber Squadron Initiative, an Air Force-wide effort that aims to provide mission assurance through active cyber defense and preventative maintenance. (U.S. Air Force photo by Senior Airman Savannah L. Waters)