The Kremlin: "Turkey violated the Astana and Sochi agreements. The Syrian government has the full right to restore security to Aleppo using all types of weapons and methods, and it has the right to take all necessary measures for this."
Astana Agreement:
Started in January 2017.
Essentially, it is a peace process involving Russia, Turkey, Iran, the Syrian government, and Syrian opposition groups.
Its goal was to reduce violence in Syria by creating “de-escalation zones” in conflict areas such as Idlib.
Arab countries supervised these zones, facilitated prisoner exchanges, and ensured the delivery of humanitarian aid.
The agreement effectively completed the UN-led Geneva talks, but faced challenges such as violations and limited participation by Syrian opposition groups.
Sochi Agreement: