HMS Ocean (L12) is the navy’s biggest ship and main helicopter carrier. She played a big role in the Invasion of Iraq in 2003 and was the British flagship during the Libyan Civil War, during 2012 she will be deployed at the London 2012 Olympics. Over Christmas 2011 her crew became famous for making a music video of “All I want for Christmas is you”. This was filmed when they were at war in Libya. Her nickname is “The Mighty-O”. 