CARIBBEAN SEA (Sept. 21, 2020) The Arleigh-Burke class guided-missile destroyer USS William P. Lawrence (DDG 110) fires an Mk 38 25mm machine gun during a live-fire exercise. William P. Lawrence is deployed to the U.S. 4th Fleet area of operations to support Joint Interagency Task Force South's mission, which includes counter illicit drug trafficking in the Caribbean Sea and eastern Pacific Ocean. (U.S. Navy photo by Mass Communication Specialist 3rd Class Maria G. Llanos)