The mission was announced on 19 January 2010, with the ship transporting a field hospital, 50 medical officers, 450 troops. Also on board are three helicopters, and several fast boats.
Castilla left Rota on 22 January 2010, carrying 423 troops, and 4 helicopters, headed for Petit-Goâve, Haiti.
On 1 February 2010, Castilla arrives at San Juan in Puerto Rico to pick up additional supplies.
On 4 February 2010, Castilla arrives at Petit-Goâve.
As of 5 February 2010, landing craft from the ship have started disgorging equipment.
Castilla is expected to remain on-station at Petit-Goâve for three months.