180503-N-IO170-016 WASHINGTON (May 3, 2018) The Washington Navy Yard, established in 1799, is America’s oldest Navy base. Throughout its history, Washington Navy Yard served as a construction yard and later a gun factory. Today, it supports technical, legal, and administrative headquarters staffs as well as being home to senior Navy leaders and being the ceremonial Quarterdeck of the Navy. (U.S. Navy photo by Shejal Pulivarti/Released)