Navy Day is a celebration dedicated to honoring the naval forces of a country. It is observed in various nations, often on different dates, to recognize the contributions and sacrifices of sailors and naval personnel. The day typically includes ceremonies, parades, and public events that showcase naval ships and equipment. In the United States, Navy Day is celebrated on October 13, coinciding with the birthday of President Theodore Roosevelt, who was a strong advocate for naval power. The day serves to promote awareness of the U.S. Navy and its role in national defense and maritime security.