PACIFIC OCEAN (April 1, 2021) The Royal Australian Navy Hobart-class air warfare destroyer HMAS Sydney (DDG 42) and the Arleigh Burke-class guided-missile destroyer USS John Finn (DDG 113) conduct a group sail in the waters off the coast of Southern California, April 1, 2021, to improve their collaborative partnership, combined lethality exercises, and interoperability. (U.S. Navy photo)