Syrian air defenses pose formidable challenge for responding to use of chemical weapons
Mahmoud Tawil, File, Associated Press
BEIRUT — International military action against Syria's government over its alleged use of chemical weapons would run up against one of the Middle East's most formidable air defenses, a system bolstered in recent years by top-of-the-line Russian hardware.
The U.S. said last week that intelligence indicates the Syrian regime has likely used the deadly nerve agent sarin on at least two occasions in the civil war. That assessment has increased pressure for a forceful response from President Barack Obama, who has said the use of chemical weapons would cross a "red line" and carry "enormous consequences."
Obama has tried to temper expectations of quick action against Syria, saying he needs "hard, effective evidence" before making a decision. But he has also said that if it is determined that the regime of President Bashar Assad has used such weapons, then "we would have to rethink the range of options that are available to us."
Defense Secretary Chuck Hagel told a news conference Thursday the administration is rethinking its opposition to arming the rebels, saying it is one of the options being considered along with its allies in the more than 2-year-old conflict.
In 2011, the U.S. and its NATO allies imposed a no-fly zone in Libya after Moammar Gadhafi's brutal crackdown on its uprising. The allied air campaign, which received U.N. backing, played a major role in the rebels' victory in Libya's eight-month civil war.
While NATO quickly knocked out Libya's air defenses, experts warn that Syria's capabilities are far more sophisticated and its system is far more extensive than Gadhafi's was.
"In the case of Libya, the system had deteriorated completely already before the outbreak of the conflict due to the fact that Gadhafi had not invested so much in his air defense," said Pieter Wezeman, a senior researcher at the Stockholm International Peace Research Institute. "In the case of Syria, it's quite different."
Syria, experts say, possesses one of the most robust air defense networks in the region, with multiple surface-to-air missiles providing overlapping coverage of key areas in combination with thousands of anti-aircraft guns capable of engaging attacking aircraft at lower levels.
Six years ago, the system was showing signs of neglect.
In 2007, Syria's aging Soviet-supplied air defense system received a shock when Israeli jets bombed a suspected nuclear reactor site along the Euphrates River in northeastern Syria. The attack proved deeply embarrassing and provided a jolt to the Assad regime, which responded by making a concerted push to upgrade its air defenses, and turned to the country's traditional arms provider, Russia, for help.
Moscow, which has been the source of most of Syria's military hardware since Assad's father and predecessor, Hafez, courted the Kremlin decades ago, was more than happy to oblige.
It provided Syria with new systems, such as 36 Pantsyr mobile surface-to-air missile systems and at least eight Buk-M2E mobile SAMs. The Pantsyrs, considered particularly effective against attacking aircraft, feature a combination of 30mm cannons paired with a radar and anti-aircraft missiles all on the same vehicle.
At the same time, old SA-3s were upgraded to Pechora-2Ms — essentially a new and much more capable system.
There have also been persistent rumors that Syria acquired the advanced, Russian-built S-300 anti-aircraft missiles, considered to be the cutting edge in aircraft interception technology, although there are doubts about whether Damascus actually has them.
Moscow had refused to deliver the systems, but there have been unconfirmed reports that other nations may have sent Syria the missiles, which could make any aerial intervention very costly for the attackers.
"It's certainly the kind of system that if delivered would increase the risks for Israel, the USA or anyone else would they want to intervene militarily," Wezeman said.
Separately, Syria also has obtained from Russia the mobile Bastion-P land-based coastal defense systems, including Yakhont anti-ship missiles capable of sinking large warships, including aircraft carriers.
Russia has stood by Damascus since the uprising against Assad began in March 2011, shielding it from U.N. sanctions and continuing to supply the Syrian military with air defense components. Its support has not faded, even as the death toll in the conflict passed 70,000.
In February, Anatoly Isaikin, the head of the state arms trading agency Rosoboronexport, said that since there are no sanctions against shipping weapons to Syria, Russia was still fulfilling its contract obligations.
"These aren't offensive weapons," he said. "We are mostly shipping air defense systems and repair equipment for various branches of the military."
Like all of the Syrian military, the country's air defense system undoubtedly has suffered damage since the conflict became a civil war. Rebels have captured large swaths of northern Syria and have made a bridgehead in the south along the border with Jordan. Hydroelectric dams, cities and military bases have fallen into rebel hands.
But the extent of the fighting's toll on Syria's air defenses is, like many things in the country, hard to gauge.
"There is plenty of evidence that the rebels have been able to capture or destroy such air defense systems, and that included also new equipment," Wezeman said, citing videos posted on the Internet. "There must be major holes in there in the system."
Israel appeared to find one in January when it hit an apparent convoy purportedly carrying anti-aircraft missiles to the Lebanese militant group Hezbollah.
After that airstrike, Syrian Defense Minister Gen. Fahd Jassem al-Freij said rebels had made Syrian air defenses across the country a focus of their attacks, hitting some with mortar fire while trying to seize others in order to incapacitate them.
In response, he said the Syrian leadership decided to station them all in one safe place, leading to "gaps in radar coverage in some areas."
"These gaps became known to the armed gangs and the Israelis who undoubtedly coordinated together to target the research center," he said.
Despite al-Freij's uncommonly frank remarks, Elias Hanna, a retired Lebanese general and a senior lecturer at the American University of Beirut, said Syria's air defenses were still in good shape and would provide a stiff challenge to any foreign intervention.
Most of the country's air defense weapons, radar and other equipment have been positioned along Lebanon's border and in the Syrian-controlled part of the Golan Heights because Israel, which captured part of the territory in the 1967 war, was long perceived as the biggest threat, he said.
Some defense systems are also deployed along the Syrian Mediterranean coast and substantial air defense system have always been stationed in and around the capital Damascus.
"If there was an attack now," Hanna said, "Syria would have an upper hand."
Associated Press writer Jim Heintz in Moscow and Lolita C. Baldor in Washington contributed to this report.
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