49th TES Celebrates 100 year of Excellence Published Aug. 16, 2017 By Senior Airman Mozer O. Da Cunha 2nd Bomb Wing Public Affairs BARKSDALE AIR FORCE BASE, La. -- Lt. Col. Joseph McKenna, 49th Test and Evaluation Squadron commander, speaks to guests during a ceremony at Barksdale Air Force Base, La., Aug. 2, 2017. The ceremony was held to celebrate the 100th birthday of the 49th TES, and to provide a historical overview of the unit’s missions and accomplishments over the century. (U.S. Air Force Photo/Senior Airmen Mozer O. Da Cunha)