Navy Day Sailors high-five Screech, the Washington Nationals’ mascot, during Navy Day at Nationals Park in Washington, D.C., May 1, 2019. The Nationals dedicate games to each of the military services every season. SHARE IMAGE: Download Image: Full Size (1.13 MB) Tags: Navy Photo By: Navy Petty Officer 1st Class Sarah Villegas VIRIN: 190501-N-YG104-0011C.JPG Photo Gallery