U.S. Army Lt. Col. Dr. David L. Greenburg, Kappa Alpha Order (Transylvania ’96), treats a patient during a humanitarian outreach mission in the Laos People’s Democratic Republic, Nov. 19, 2017. Greenburg was the team surgeon for the Defense POW/MIA Accounting Agency recovery mission in the area. During that time, he treated more than 150 villagers during a two-day humanitarian mission. The mission of DPAA is to provide the fullest possible accounting for our missing personnel to their families and the nation.