Assistant program executive officer for Engineering with Program Executive Office Land Systems Mary FlowerLeMaster poses for a photo with Defense Civilian Training Corp summer interns, David Appelt (right) and Rithwik Erabelly (left) outside of the Marine Corps Systems Command building in Quantico, Va., June 3, 2025. Appelt and Erabelly completed an eight-week internship designing and developing a digital wargame to strengthen Marine small unit defense against unmanned aircraft systems for PEO LS. (Courtesy photo.)