Iran's New Ghadir Submarines

New photos released by the Iranian Defense Ministry claim to show Iran's Ghadir submarines in the southern port of Bandar Abbas in Persian Gulf, Iran, Sunday, Aug. 8, 2010. Iran's state media say the country's navy has taken charge of four new Iranian-built submarines as part of Tehran's efforts to upgrade its defense capabilities. (AP Photo/Iranian Defense Ministry, Vahid Reza Alaei)

The official IRNA news agency says Defense Minister Gen. Ahmad Vahidi and Navy chief Adm. Habibollah Sayyari attended Sunday's ceremony marking the delivery of the vessels to the Iranian navy. (AP Photo/Iranian Defense Ministry, Vahid Reza Alaei)

IRNA says the Ghadir class submarines can fire missiles and torpedoes at the same time and can operate in the Persian Gulf's shallow waters. (AP Photo/Iranian Defense Ministry, Vahid Reza Alaei)

Iran has sought to upgrade its air defense systems and naval power, saying any possible future attacks against Iran will be air and sea-based. (AP Photo/Iranian Defense Ministry, Vahid Reza Alaei)

Iran has also three Russian-made submarines. (AP Photo/Iranian Defense Ministry, Vahid Reza Alaei)