Cyberwarfare specialists serving with the 175th Cyberspace Operations Group of the Maryland Air National Guard engage in weekend training at Warfield Air National Guard Base, Middle River, Md., June 3, 2017. Navy Adm. Michael S. Rogers, director of the National Security Agency, commander of U.S. Cyber Command and chief of the Central Security Service, briefed the Senate Armed Services Committee on Cyber Command’s role in the support of the nation’s defense against its adversaries, Feb. 27, 2018. Air Force photo by J.M. Eddins Jr.