The first continental Argentine base in Antarctica, the Almirante Brown Naval detachment was opened in the year 1951. The following year opened the Esperanza Naval detachment (now Esperanza Station). While building this last base at hope Bay, occurred the first shooting war in Antarctica on 1 February 1952, when a team of coast Argentine, after a warning, fired over the heads of a burst of machine gun and forced to re-embark a civil team of the Falkland Islands Dependencies Survey unloading materials of the ship John Biscoe intending to restore the British base "D" burned down in 1948.[22][23]