Navy Day is observed in Chile every May 21, commemorating the Battle of Iquique, which occurred on the same date in 1879 during the War of the Pacific. This public holiday marks a significant naval battle between Chile and Peru, which, despite being a victory for Peru, is regarded by Chilean historians as pivotal to Chile's eventual success in the war. The holiday, originally established as Naval Glories Day in 1905, is now known as Navy Day and features celebrations across the country, particularly in major cities such as Santiago, Iquique, and Valparaiso. The day honors the contributions and sacrifices of the Chilean Navy and includes various events and activities to recognize this important part of the nation's history.