Four Iranian vessels closed in at high speed at the destroyer USS Mahan, which then fired three warning flares.
This came after the USS Mahan tried to order the Iranian Islamic Revolutionary Guard boats to stop via radio communications, but they continued their approach.
In addition, a Navy helicopter also dropped a smoke float.
The Iranian boats came within 900 yards of the Mahan which was escorting two US vessels.
Currently, Iran is conducting war games in the strait and simulating maneuvers that would shut down the entrance to the Persian Gulf.
Although there are no U.S. aircraft carriers deployed in the Middle East once the USS Dwight D. Eisenhower returned to Norfolk and the USS George H.W. Bush had its deployment delayed, there is a U.S. Navy amphibious assault ship with helicopters, jets and over 1,000 Marines in the region.
By the way, I always capitalize 'Marine.'