More than 90% of the Internet was shut down in Syria Thursday as rebel clashes with Bashar al-Assad's forces were reported near the Damascus airport.
It's not the first time the Web has been blocked in the war-torn country, but the move toward the airport could be highly significant, said retired U.S. Army Gen. Mark Kimmitt, who worked as assistant secretary of state for political-military affairs under President George Bush.
Damascus, the capital, is the seat of al-Assad's power. It is also home to many Syrians who belong to the Alawite sect. The al-Assads are Alawite.
Rebels fighting al-Assad's forces and possibly winning at or near the airport "would have a psychological affect," Kimmitt explained. "The civilians in Damascus will feel cut off from the outside world."
The Alawites, he said, understand there are very few alternatives other than staying in Syria now, but if rebels take the airport, they would likely feel trapped. Some will go on about their lives, a coping mechanism, he said. Some will flee to neighborhood countries, while others may actually choose to take a stronger position in defending al-Assad.
Strategically, Kimmitt noted that most of the military's aircraft are being flown out of bases elsewhere in the country.
The road to Damascus International Airport was shut down because the rebels and the military were fighting on the outskirts of the city, said the opposition-supporting, London-based Syrian Observatory for Human Rights.
Egypt Air is canceling flights to Syria starting Friday, said Egypt Air spokesman Mohamed Rahma.
The airline cited a "deteriorating situation" around the Damascus airport, a Cairo airport official said, according to Egyptian semi-official news agency Al-Ahram.
On the other side, government-run TV ran an urgent banner saying that the road to Damascus International Airport had been secured after "terrorists" attacked cars.
Al-Assad's regime has routinely blamed terrorists for the violence in the country.
Also Wednesday, most Internet access in Syria was shut down, according to the Internet monitoring group Renesys.
It was not clear who was behind the latest outage, but the government has intermittently cut off Internet access several times in the past two years.
Opposition activists often transmit updates about the civil war in reports and images on the Web.
Syria state TV reports that the government's minister of communications said maintenance workshops were working on "fixing the blackout in the main communication and Internet network in a number of Syrian provinces."
U.S. Ambassador to Syria Robert Ford said that in response to government Internet-related actions, the United States has given "a thousand pieces of non-lethal equipment -- largely communications gear" to help opposition activists get around the cyber roadblocks.
He spoke in Washington on Wednesday about the humanitarian situation in the country. He talked to CNN Thursday.
"The Syrian government has been monitoring (the Internet) for years. They have been using the Internet with Iranian assistance to track opposition activists, arrest and kill them," Ford said.
"That is the reason why our non-lethal assistance to the Syrian opposition, we put a special emphasis on communications equipment precisely to help the Syrian people tell the world what is going on inside Syria," he said.