MANAMA, Bahrain - Two offshore skimmers tow a boom (floating barrier) across the water during an oil spill and recovery proof of concept demonstration, April 29. The proof of concept focused on the ability of U.S. Navy and host nation assets to respond quickly and collect and recover offshore oil spills. USNS Catawba (T-ATF 168) and USS McCampbell (DDG 85), along with Bahraini Coast Guard emergency management personnel, participated in the exercise. Official U.S. Navy Photo by Journalist 2nd Class Cassandra Thompson.