 On April 21, 1970, three units — "La Crête-à-Pierrot", "Vertières", and "Jean-Jacques Dessalines" — mutinied and shelled the Presidential Palace in Port-au-Prince.They were driven off by fighter aircraft and then interred themselves in the Guantanamo Bay Naval Base.The US disarmed the vessels and relocated them initially to Puerto Rico and then back to Haiti.