The Bay of the Pigs Invasion Anniversary is observed in Cuba every year on April 19. This day commemorates the failed landing operation by the Cuban Democratic Revolutionary Front, which was backed by the United States government and ultimately solidified Fidel Castro’s leadership in the country. The invasion, known as Operation Zapata, involved a CIA-supported force of about 1,400 Cuban exiles, Brigade 2506, who attempted to overthrow Castro's regime. The anniversary is marked by various ceremonial events, including wreath-laying ceremonies at memorials dedicated to pro-government Cubans who died during the invasion, along with political speeches. The defeat of the invasion not only reinforced Castro's position but also deepened the rift between the United States and Cuba.