Sgt. Mykhailo "Misha" Varvarych, commander of Ukraine's 80th Airborne Assault Brigade, delights in the ocean waters of Daytona Beach, Fla.

The BRAVO Laboratory at the US Department of Veterans Affairs in the heart of New York City is making some moves -- and that's just how Cesar Jimenez, a 77-year-old Vietnam veteran and avid marathoner who lost his right leg below the knee from a machine-gun injury, likes it.