FTP, name this opening to the Persian Gulf.
In the north is Qeshm Island, a free trade zone, 21 miles away to the south is the territorial exclave of Musandam, and it is mentioned but left unnamed in the Periplus of the Erythraean Sea.  In following with a Traffic Separation Scheme, the traffic lane is only 6 miles wide, consisting of 2-mile inbound and outbound lanes with a 2-mile buffer zone in between.  Some 35 percent of the world's and 75 percent (*) of Japan's oil supply pass through this strategic passage, which was the location of the 1984-1987 Iran-Iraq Tanker War.  FTP, name this opening to the Persian Gulf. 
In the north is Qeshm Island, a free trade zone, 21 miles away to the south is the territorial exclave of Musandam, and it is mentioned but left unnamed in the Periplus of the Erythraean Sea.  
Strait of {Hormuz}