In this Thursday, May 9, 2019 photo released by the …

Photo by Associated Press | published: May 10, 2019

In this Thursday, May 9, 2019 photo released by the U.S. Air Force, a B-52H Stratofortress assigned to the 20th Expeditionary Bomb Squadron is at Al Udeid Air Base, Qatar. The B-52 bombers ordered by the White House to deploy to the Persian Gulf to counter unspecified threats from Iran are beginning to arrive at a major American air base in Qatar. (Staff Sgt. Ashley Gardner/U.S. Air Force via AP)