WATCH: Commanding officer of HMS Queen Elizabeth hails navy's new carriers as 'symbols of national power'

The captain of the Royal Navy's mighty new aircraft carrier says she and her sister ship will be 'symbols of national power.'
HMS Queen ElizabethHMS Queen Elizabeth
HMS Queen Elizabeth

As HMS Queen Elizabeth - the largest and most powerful ship ever built for the Royal Navy - prepared to set sail for the first time today for extensive sea trials off Scotland, Captain Jerry Kyd talked about the relevance of such a large ship and her sister carrier HMS Prince of Wales in a changing defence world.