Chief Master Sergeant David A. O'Hara is the Command Chief Master Sergeant for the 48 Fighter Wing, Royal Air Force Lakenheath, England. As the wing's Senior Enlisted Leader, Chief O’Hara serves as the primary advisor to the commander on matters concerning the mission effectiveness, readiness, training, health, welfare and morale of more than 5,000 active duty military members and 2,000 British and U.S. civilians.