Assad Is Bombing Syria's Biggest City Like Never Before

The regime of Syrian President Bashar al-Assad is in the midst of an unprecedented bombing campaign in Aleppo, Syria's largest city and one of the oldest in the world.

Syrian Air Force jest have been dropping bombs - including steel barrels packed with explosives and shrapnel - on the country's former commercial and industrial hub for four straight days.

Here's an unsettling photo showing the aftermath of a strike on Wednesday:

Rebels believe that the super intense air campaign, which is causing many civilians to flee to the countryside, could be the setup to a government ground offensive against the opposition-held half of the city.

Assad has waged an air campaign against rebel-held towns since July 2012. The jet and helicopter attacks - which have also included incendiary bombs - have targeted bakeries, markets, hospitals, and schools in an attempt to disrupt civilian life under rebel rule.

It has undoubtedly worked. Here's Homs, Syria's third largest city and one of the first to rise up against Assad:

Here's a strike on the town of Yabroud, a rebel stronghold located about 49 miles north of the capital Damascus (impact at 0:45):

And here's another photo from Aleppo on December 9: