Worth going back and revisiting the enormous effort Russia expended in air power, diplomacy, intelligence, money and influence and information operations when it took Aleppo in 2015/16. The vilification of rescue workers and journalists; the platforming and amplification of losers and cranks as regional experts; the spearphishing sprees; etc. etc. All that's come undone in just 48 hours.
Fucking hell, the rebels are nearing the full capture of Aleppo, the whole of city. At the height of their power in 2015, they’d seized only a portion of the city.