A CREW'S THANKSGIVING Navy Senior Chief Petty Officer Nancy Estrada serves Thanksgiving dinner to the crew of the USS Constitution in Charlestown, Mass., Nov. 19, 2012. Estrada is assigned to the Constitution, the world's oldest commissioned warship afloat. The ship defended the sea lanes against threat from 1797 to 1855. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 474957-D-DSD17-609.jpg Photo Gallery