At a back room in a plain building in Quantico, Virginia, in wall lockers and cardboard boxes stacked neatly on top are artifacts from past wars. On a table at the rear of the room sits a number of items and personal effects belonging to Marines who served in Iraq and Afghanistan. There’s a bloodstained Kevlar helmet, worn by Lt. Col. Ty Edwards, who survived a headshot in Afghanistan during an ambush in 2008, as well as a woodland blouse and a pair of dog tags belonging to Medal of Honor recipient Jason Dunham. Dunham was killed in Iraq in 2004 after he leapt atop a hand grenade, giving his life to save two other Marines.