5 Iranian Weapons of War America Should Fear

Yes, America is the most dominant military power on the planet—but it does have some weaknesses Iran could exploit. 

With the possible exception of North Korea, no country in the post–Cold War era has sought to challenge the United States as much as Iran. From the Middle East to Central Asia to Latin America, Tehran has never missed an opportunity to antagonize the U.S. and limit its influence.

This is an inherently risky strategy. Not only has the U.S. encircled Iran with military bases on all sides, but America’s military spending in recent years has been twice the size of Iran’s entire GDP. In any conventional military conflict, Iran wouldn’t stand a chance against the U.S. armed forces.

To compensate, Iran pursues a deterrent-based military doctrine premised on three types of capabilities: an expansive ballistic missile arsenal, asymmetric naval warfare (particularly the threat of closing down the Strait of Hormuz), and ties to non-state militant groups. Although many weapon systems go into implementing this doctrine, five capabilities are particularly crucial:

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Sejjil Missile

The most blunt instrument in Iran’s military doctrine is its large inventory of ballistic missiles. Of these, the Shahab family of ballistic missiles, which are based on North Korean designs, are the best known.

The Sejjil-1 (and its successor, the Sejjil-2) should be the most feared, however. The Sejjil-1 is a two-stage, medium range surface-to-surface ballistic missile that Iran first tested in 2008. Unlike the Shahab missiles, the Sejjil-1 missile is solid-fueled, greatly reducing its launch time while enhancing its mobility.

In Congressional testimony in November 2009, then U.S. Defense Secretary Robert Gates said that the “The [Sejjil] missile will have a range of approximately 2,000 to 2,500 kilometers.” This is consistent with the ranges given by Iranian officials like Defense Minister Brigadier General Mustafa Mohammad. At this range, the Sejjil-1 can deliver a 750 kg payload to Israel and even parts of southeastern Europe. It is widely believed that this could someday be a nuclear payload.

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The Sejjil-2 was first tested in 2009 and is likely still under development. According to Global Security, “The Sejjil-2 has an demonstrated range capability of 2,510 kilometers with its 650 kilogram tri-conic warhead re-entry vehicle design. It can also carry a 1,000 kilogram warhead to 2,000 kilometers.” The Sejjil-2’s biggest advancement is in accuracy, something Iranian ballistic missiles have traditionally lacked. Iranian defense officials have said that compared with the Sejjil-1, the Sejjil-2 is “equipped with a new navigation system as well as precise and sophisticated sensors.”

Ghadir-class midget submarines

Perhaps Iran’s greatest deterrent threat is its ability to threaten oil shipments in the Strait of Hormuz, which roughly 20 percent of global oil supplies must transverse on their way to markets. Indeed, according to some estimates, the U.S. has spent some $8 trillion protecting the Strait of the Hormuz since 1976.

Submarines would be invaluable for Iran were it to try and close the Strait of Hormuz. As the Institute for the Study of War (ISW) has explained, “In the confined and shallow waters of the Arabian Gulf, the ability to deploy submarines effectively threatens surface vessels that are channeled into narrow Sea Lines of Communication.” These narrow SLOCs force military and commercial ships to travel predictable routes, making them easy prey for submarines.

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Iran has a number of different types of submarines, but its growing fleet of 150-ton Ghadir-class (Qadir/Khadir) midget submarines would be especially deadly in any conflict. A variant of the North Korean Yugo and Sango-class submarines, the small size and acoustic signature of the Ghadir-class make them especially hard to detect and track. Each sub packs two 533-mm tubes for firing torpedoes, is capable of laying mines and, according to Iranian media outlets, could be used to transport and insert special forces into enemy territory.

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