[A guest post written by a Libyan tha'er. The full Arabic-language resignation statement above can be found here.]
The Military Council/Free Syrian Army (FSA) commander in Aleppo and the commander of operations in Sfira both resigned (the latter saw this coming and was warning of it for weeks).
There are multiple causes for the fall of Sfira.
The major one is the regime’s determination and allocation of large numbers of troops and gear. For 30 days straight, the city experienced unprecedented carpet bombing (mainly “barrel” bombing from the air and artillery shelling from the ground). Two weeks ago, I watched an interview with the commander in Sfira who said that there was no 20-square meter block in the city that was not shelled and that they would not be able to hold their ground for long (they barely made it out). All residents of the city had fled for their lives just days after the start of the massive bombing campaign. The city is now in ruins and anyone staying there would not have survived the shelling. The second main reason is the fragmentation of the rebel brigades. The regime and its Lebanese and Iraqi militias are all working under one command (an Iranian command actually and there was a long video released of the Iranian operation room in Aleppo not long ago) and they were able to put forth a quick, brute-force offensive and basically destroy the city before taking it. The rebel brigades, however, were busy fighting the Kurdish PKK in the north and within the city of Aleppo (trying to liberate the central prison) and left Sfira with no defenses. After several cries of help from the Sfira commander, several groups sent in small reinforcements who came in for brief periods of time and left. There was barely any rebel presence when the regime hit. The few rebels who stayed were locals and from Jabhat Al-Nusrah but they were very lightly-armed (all they had were AK-47s and a few rocket-propelled grenades and were fighting on foot). Even these few were working on their own with absolutely no coordination. So the lack of unified command plus the lack of heavy weaponry plus engagement elsewhere were the reason why the rebels could not hold their ground.
The Aleppo FSA commander resigned in protest against the Supreme Military Council’s failure to make good on its promise of providing heavy equipment (out of fear that it might fall into the hands of Jabhat al-Nusrah and ISIS) just as they did in Lattakia where the rebels simply ran out of ammunition. This was certainly a blunder for the rebels and they are realizing it now. They are trying hard to set up an operations room and mount a counter-offensive. The Islamic brigades are now massing in nearby towns and have stopped the regime advance toward the North. In my opinion, this round in Sfira was not the rebels’ battle, as it was a conventional army offensive and holding their ground would have been too costly (especially since the city was destroyed and vacant already).
What they need to do now is what they did the first time to capture the city: take out regime posts using vehicle-borne improvised explosive devices and capture one part of the city at a time. The regime is trying to move quickly toward the city of Aleppo and break the siege because the resources it has allocated for this battle are needed elsewhere and if it takes too long it will be forced to withdraw from the area again to reinforce other more important regions (mainly Damascus and Homs).