The CNA Military Advisory Board (MAB) is an American defense advisory group composed of retired three-star and four-star generals and admirals from the Army, Navy, Air Force, and Marine Corps that studies pressing issues of the day to assess their impact on America's national security. CNA is a nonprofit research and analysis organization that operates the Center for Naval Analyses and the Institute for Public Research. The CNA Military Advisory Board was founded by Sherri Goodman, former Deputy Undersecretary of Defense (Environmental Security), who served as the Executive Director of the CNA MAB from its founding in 2007–2015.