On board US carrier as it sails through Strait of Hormuz
14 February 2012 Last updated at 19:29 GMT
The BBC's Jonathan Beale reports from on board the American aircraft carrier which has sailed through the Strait of Hormuz for the second time in a month, amid tensions between Iran and the US.
Iran has threatened to close the Strait - through which 20% of the world's oil travels, making it one of the most important waterways in the world.
Jonathan Beale reports from the USS Abraham Lincoln.