U.S. Air Force Lt. Col. Mark Lehman, chief of public

U.S. Air Force Lt. Col. Mark Lehman, chief of public health education and training, Defense Institute for Medical Operations, speaks at the Medical Symposium in Chanthaburi, Thailand, during exercise Cobra Gold, Feb. 12, 2016. Cobra Gold, in its 35th iteration, includes a specific focus on humanitarian civic action, community engagement, and medical activities conducted during the exercise to support the needs and humanitarian interests of civilian populations around the region. (U.S. Marine Corps Combat Camera photo by Lance Cpl. Miguel A. Rosales/ Released)