The relentless brutality of the Assad regime that spurred the rebellion in the first place was seen today as Assad betrayed the rebels of Aleppo. Thousands of rebels and civilians were slaughtered like cattle in the final holdout of East Aleppo after years of intense bombing by Russian and Syrian war planes. The rebels believed that a truce was in force orchestrated by Russia and Turkey to evacuate the civilians and rebel fighters to the Free Syrian province of Idlib. The infamous green buses even pulled up to the outskirts of the city to give the image of security.
The entire gimmick was a brilliant (or evil) setup by Assad. The rebels and civilians, while preparing to gather for evacuation, suddenly found themselves in the open and ready for slaughter by the Russians and Iranian/Iraqi militias that now make up the bulk of the Syrian armed forces. It was a massacre.
Now Aleppo is under complete government control. But the city is in ruins and the eastern side is almost completely in ruins.