– The Diplomat – Iran is steadily increasing its ability to indigenously produce different kinds of submarines, some of which would likely play an important role in any Iranian effort to close down the Strait of Hormuz. In an interview with the semi-official Fars News Agency this week, Admiral Khordad Hakimi, commander of the Iranian Army’s 4th Naval Zone in the Caspian Sea, said that Iran is mass producing light submarines and has begun constructing medium submarines.