U.S. Marine Lance Cpl. Justice Blackwell, a ground radio repairman with Headquarters Battery, 2nd Battalion, 14th Marine Regiment, 4th Marine Division, digs a fighting hole for entry control points to provide security during their annual training event Operation Zeus, Fort Hood, Texas, July 18, 2019. Annual training exercises ensure Reserve Marines are proficient and capable of successful integration with their active duty counterparts. (U.S. Marine Corps photo by Cpl. Serine Farahi)