190724-N-AK002-1155 ATLANTIC OCEAN (July 24, 2019) A Knifefish unmanned undersea vehicle (UUV) training model undergoes crane operations aboard the Military Sealift Command expeditionary fast transport vessel USNS Spearhead (T-EPF 1) as part of a training exercise enabling mine countermeasure missions (MCM) from an EPF as a vessel of opportunity (VOO). Knifefish is a medium-class mine countermeasure UUV designed for deployment off the littoral combat ship. (U.S. Navy photo by Master-at-Arms 1st Class Alexander Knapp/Released)