Syria's Rebels Struck When Assad's Allies Were Weakened and DistractedDiminished support for the Syrian government from Iran, Hezbollah and Russia enabled opposition forces to take the initiative and seize new territory.
Source: Syria's Rebels Struck When Assad's Allies Were Weakened and Distracted (https://www.nytimes.com/2024/12/01/world/middleeast/syria-rebels-bashar-al-assad.html)