Members of Coast Guard Sector Jacksonville, Fla., participate in a Jacksonville Fire Rescue Department led exercise during which several agencies tested their response to a fire aboard a container ship moored at North Florida Shipyards in Jacksonville Wednesday, April 2, 2014. The exercise was intended to test emergency response techniques and improve coordination and communication among the involved response agencies. (U.S. Coast Guard photo by Petty Officer 1st Class Lauren Jorgensen)