A closer look at HMS Albion in open seas

Amphibious forces have played a major role in British military operations for centuries.

However there are fears the Royal Navy could lose much of that capability, as the National Security Council meets to review the country's defence strategy.

HMS Albion was last seen rescuing stranded civilians and troops trying to return home from Afghanistan during the volcanic ash crisis.

The ship is now returning from an exercise in Scotland with young Royal Marine commandos aboard.

Captain Chris Waite explains how one key area of HMS Albion operates.