HMS York has left Portsmouth Naval base for Libya.
The destroyer will head to the warzone to relieve her sister ship HMS Liverpool which has been off the Libyan coast since April.
York conducted operations off Libya for two weeks in March, delivering humanitarian aid to the eastern city of Benghazi and evacuating 43 people to Malta.
She then went on to conduct security patrols in the South Atlantic, returning to the UK in July.
York passed the Round Tower, Old Portsmouth, at 10am.
The ship’s commanding officer Commander Rex Cox told The News: ‘We’re looking forward to getting the ship back out there.
‘The aim is to be out there until the mission ends.
‘Liverpool has been on task off the coast of Libya for quite a while and is being released.
‘Since York got back from the Falklands in July, sailors had a short period of leave and we’ve been working up towards this deployment for the last few weeks.
‘They have been working hard and the ship is ready.’