BOSTON (Dec. 17, 2020) USS Constitution’s holiday tree rests on the main hatch during a snow storm while the ship is moored to the pier at the Charlestown Navy Yard. USS Constitution, is the world’s oldest commissioned warship afloat, and played a crucial role in the Barbary Wars and the War of 1812, actively defending sea lanes from 1797 to 1855. (U.S. Navy photo by Mass Communication Specialist 2nd Class Grant G. Grady)