SGT Lisek served in the United States Army from 2000-2006. Bobby reached the rank of Sergeant during his service in the effort to fight the war on terror. While traveling in a vehicle through Iraq, on the third anniversary of the 9/11 attacks, Bobby was injured by an IED (improvised explosive device) that detonated under his seat. He was 26 years old at the time and suffered severe trauma resulting in a broken back, broken neck, traumatic brain injury, and amputation.