Attack on ships in Gulf of Oman occurred near Iran's Jask navy base
The base gave Iran an easy way to threaten the Straits of Hormuz and potentially cut off a fifth of the world’s oil supply.
Iranian submarines participate in a naval parade on the last day of the Velayat-90 war game in the Sea of Oman near the Strait of Hormuz in southern Iran January 3, 2012
