Command Master Chief Griego enlisted in the Navy in 1994. He holds an Associate of Science in Computer Information Systems from Columbia College, Bachelor of Science in criminal justice from Excelsior College and a Master of Science in technology management from University of Maryland University College. Griego’s military education and training include the U.S. Navy Senior Enlisted Academy (Class 161), CMC/COB Capstone Course (Class 158) and National Defense University Keystone Joint Senior Enlisted Leader Course (Class 24-1). His CMC tours include guided-missile destroyer USS Porter (DDG 78), Naval Air Station Patuxent River and Naval Computer and Telecommunications Station Bahrain.