The Syrian opposition launched a major offensive called "Deterrence of Aggression," making rapid territorial gains in northwestern Syria, particularly in Idlib and Aleppo provinces. The operation has resulted in significant advances and the collapse of Syrian army positions in multiple areas.

Key Developments:

• Opposition forces captured Aleppo International Airport
• Complete control of Idlib province's administrative borders
• Seized strategic city of Maaret al-Numan and surrounding areas
• Advanced into Hama province, capturing several towns
• Gained control of most of Aleppo city, including historic citadel

Military Situation:

• Syrian army acknowledged losing "large parts" of Aleppo
• Reports of army units surrendering positions to Kurdish-led SDF
• Russian airstrikes conducted in support of Syrian government forces
• Heavy civilian exodus from Aleppo towards Latakia and Salamiyah
• Dozens of casualties reported on both sides

Strategic Impact:

• First major opposition advance since March 2020 ceasefire
• Opposition claims communication with defecting government officers
• Plans announced for return of displaced persons to liberated areas
• Breakdown of Russia-Turkey brokered ceasefire agreement
• Major shift in territorial control in northwestern Syria

This offensive represents the most significant change in Syria's battlefield dynamics since the 2020 ceasefire agreement between Russia and Turkey, potentially altering the balance of power in the region.