The air was thick with reverence as they watched a lone sentinel pacing in flawless rhythm, twenty-one steps, pivot, pause, repeat. His navy blue uniform was crisp, his keppy hat low, sunglasses concealing his eyes. This was Sergeant Ethan Caldwell, 28 years old, member of the Third U.S. Infantry Regiment, the Old Guard.

Every step he took was for his brother Michael, who had died in Afghanistan when Ethan was still a teenager. Ethan had earned this post through years of discipline and grief, every heel click a tribute to those who never came home.

Among the crowd stood the Grayson family from California. Jonathan, a tech CEO, barely looked up from his phone. His wife, Lauren, adjusted her designer shades while holding a cemetery map. Between them, Tyler muttered loud enough for tourists to glare. “This is so lame. Why are we watching some guy walk