150714-N-TI311-012 CORONADO, Calif. (July 14, 2015) Retired U.S. Navy Lt. Commander (SEAL) Charles Chaldekas, operations range manager at Commander Naval Special Warfare Command donates blood during a mobile blood drive hosted by Naval Medical Center San Diego at CNSWC on Naval Amphibious Base Coronado. The center collects blood on military installations to benefit military hospitals, deployed service members and military families. (U.S. Navy photo by Chief Mass Communication Specialist Geronimo C. Aquino).