The US has two aircraft carrier groups in the Middle East, with the USS Abraham Lincoln and USS George H.W. Bush supporting a blockade of Iranian ports. The carriers are part of over 20 US warships in the region.
The US and Iran are nearing a deadline for negotiations, with little progress made so far. The US is considering applying economic pressure on Iran if a deal is not reached.
Meanwhile, the USS George Washington is operating in the South China Sea, and the USS Theodore Roosevelt has returned to San Diego after participating in a large-scale exercise. The US Navy's fleet of amphibious assault ships is in high demand but stretched thin.
