How the USS Abraham Lincoln became a 100,000-ton thermometer for simmering tensions between the US and Iran

The US Navy aircraft carrier USS Abraham Lincoln and the ships of its strike group are in the Arabian Sea, just out side the Persian Gulf and not far from Iran.The Us warships have become a gauge of tensions between Washington and Tehran and could find themselves on the front line if the dispute escalates into conflict.Visit INSIDER's homepage for more stories.DUBAI, United Arab Emirates (AP) — Ordered by the White House to the Persian Gulf, the USS Abraham Lincoln aircraft carrier has become a 100,000-ton barometer of the tensions between Iran and the US.Read more: Tensions between the US and Iran are heating up one of the world's most important bodies of waterSo far, the Lincoln and its accompanying ships have yet to enter the gulf through the Strait of Hormuz. It has been filmed by the US Navy on Friday carrying out exercises with other American warships in the Arabian Sea, which is over 1,000 kilometers (620 miles) away.