This is an archived article that was published on sltrib.com in 2013, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.

Beirut • Syrian rebels knocked down army defenses and moved in on the country's second largest airport Wednesday, reportedly killing more than 40 soldiers and bringing them closer to what could be their biggest conquest since the beginning of the civil war.

Control of Aleppo international airport and a military air base next to it would be a huge strategic shift for Syria's northeastern region, giving the opposition a potential air hub enabling aid and other flights.

Still, activists said it could be days before the rebels would be able to push their way into the airport, four miles from the contested city center. The advance on the airport, which stopped handling any flights weeks ago because of the fighting, comes on the heels of other strategic gains. Rebels this week captured the nation's largest dam and a military base near Aleppo. They have also brought the fight closer to Damascus, seat of President Bashar Assad's regime, moving to within a few miles from the heart of the city.

"There has been some extremely significant advances by the rebels in the past few days. There is real fear and flagging morale among regime forces in the region," said Muhieddine Lathkani, a London-based member of the Syrian National Council opposition group.