COL (Dr.) Eastridge has been on active duty in the US Army for more than 20 years. COL Eastridge studied for his MD and completed his residency in general surgery at the University of Maryland Hospital. He did fellowship training in surgical critical care at the University of Texas Southwestern Medical Center in Dallas, TX and spent 10 years on the faculty at the University of Texas Southwestern/Parkland Memorial Hospital; during this period he was deployed three times to support combat operations Operation Enduring Freedom and Operation Iraqi freedom as a U.S Army Reserve surgeon. He matriculated to active duty in 2006 and from 2006-2007, he served as the chief of trauma and surgical critical care at Brooke Army Medical Center at Ft. Sam Houston, TX. He is currently assigned as the director of joint trauma system programs at Ft. Sam Houston. COL Eastridge's interests are currently focused on trauma system development on the battlefield, including development and implementation of the joint theater trauma registry, improved resuscitation strategies for casualties, and the development pre-deployment training strategies medical units.