Actor Gary Sinise and quadruple amputee veteran Travis Mills team up to help other wounded service membersGary Sinise met Travis Mills at Walter Reed when he was recovering from an IED blast in AfghanistanU.S. Army Staff Sergeant Travis Mills was supposed to have the day off on April 10, 2012, about six weeks into his third deployment in Afghanistan.But late that afternoon, a civilian informant tipped them off about improvised explosive devices (IEDs) near Maiwand, a village roughly 40 miles west of Kandahar, Afghanistan's second-largest city.Just 400 yards away, as a minesweeper on his team scanned the ground, Mills dropped his backpack on an IED, igniting an explosion that would rip off both of his legs above the knee, his right arm below the shoulder, and his left arm below the elbow.VETERANS DAY AND ITS HISTORY: 6 KEY FACTS TO KNOWThat meeting in 2012 with Gary Sinise – an actor best known for his portrayal in "Forrest Gump" of Lt. Dan, a soldier who loses both legs in Vietnam and initially resents Gump for saving him but later learns to live a full life with his injuries – sparked a decade long friendship and partnership.CLICK HERE TO GET THE FOX NEWS APPDepicting Lt. Dan in "Forrest Gump" magnified his relationship with service members in the 1990s, and the 9/11 attacks prompted him to form the "Lt. Dan Band" in 2003, which he toured military bases with worldwide as Americans were sent overseas."