The aircraft carrier U.S.S. Abraham Lincoln has passed through the Suez Canal and is now in the Red Sea.
B-52 bombers, which were dispatched from the United States, have landed at the U.S. air base in Qatar.
This deployment was announced by U.S. National Security Adviser John Bolton Sunday evening.
He said it was in response to unspecified Iranian threats against American interests in the Gulf.
The Iranians on Wednesday announced that they would be modifying their compliance to the 2015 Iran nuclear deal.
This does set the stage for an escalation in tensions between the United States and Iran which have been escalating in fact gradually since President Trump won the 2016 U.S. presidential election.
They also accelerated since the United States pulled out of that agreement from a year ago.