U.S. Navy Hospitalman 3rd Class Leigh Prevatte, left, with the Armed Services Blood Bank Center, draws blood from Marine Corps Lance Cpl. Jacob Hug, a combat videographer, at Camp Kinser, Okinawa, Japan, Nov. 15, 2013, in support of Operation Damayan. U.S. military forces aided in humanitarian efforts in response to Typhoon Haiyan.