Lt. Col. Kecia M. Troy, left, the outgoing Product Manager for Electro-Optical/Infrared (EO/IR) Payloads, passes the charter to Christian Keller, center, Project Director of Product Director Sensors Aerial Intelligence (PD SAI), who will pass it to Lt. Col. Melvin Mitchell, right, on Fort Belvoir, Va., May 23, 2019. U.S. Army Photo by Heather Harris