CMSAF visits Osan AB Published July 1, 2022 By Senior Airman Megan Estrada 51st Fighter Wing Public Affairs OSAN AIR BASE, Republic of Korea -- Chief Master Sgt. of the Air Force JoAnne S. Bass, visited Osan to meet with senior and junior Total Force members to talk about the future of the Air Force and receive feedback about challenges Airmen may be facing and how she can advocate for them. Bass serves as the personal advisor to the Chief of Staff and the Secretary of the Air Force on all issues regarding the welfare, readiness, morale and proper utilization and progress of more than 600,000 Airmen.