Why does the Iranians have underground missiles launchers on the north section on the island of Abu Musa?

Question

The Iranians has got underground missle launchers located on the north section of the island of Abu Musa in the persian gulf.Are they allowed to have missel launchers that close to Saudi Arabia and the other Arab states.You can clearly see them on Google earth.

Answer 1

If they indeed had them, I am sure it would bring a public outcry from governments around the world.