Marine credits triathlons for making him a better warfighter - Maj. Ken Parisi, a logistics specialist at Marine Corps Systems Command, crosses the finish line at the Ironman World Championship at Nelson Mandela Bay in Port Elizabeth, South Africa, in September. He placed in the top 25 percent of 4,500 competitors and said his passion for triathlons gave him confidence and made him a better Marine. (Courtesy photo)