After Rebels zeized strategic Al Eis (1st April), capture of Khan Tuman reversing last major gain of pro-Regime foreign militias (20th Dec).

Rebels have proven best way 2 defeat pro-Regime forces is fighting by uniting own forces & opening several fronts. "Regime" is less flexible

Lastly, fact that pro-Regime forces taken by surprise & defeated in #Aleppo (despite bulk of Iranian-led militias) is big issue for Regime.