Conflict coverage · Syria

The Idlib ceasefire freezes the lines

March 2020Key eventIdlib

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Military & security

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MilitaryDiplomaticTürkiye and northern Syria

After a regime offensive into Idlib brings Turkish and Russian forces to the edge of direct war — including the death of dozens of Turkish soldiers — Presidents Erdoğan and Putin agree a ceasefire and joint patrols along the M4. The war's lines freeze into the four-zone map that holds until 2024.

Why it mattersThe freeze preserved Idlib — and within it HTS's proto-state — for four years. The force that took Damascus in 2024 was built, trained and administered inside the enclave this ceasefire protected.

Confidence: HighSources: Established historical recordMethodology Corrections

Related structure

3 records that this event names, or that name it. Every one is an explicit reference in a published record — nothing here is inferred from subject matter.

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Turkish northern securityThe zones, and the frozen line

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Where this fits

This is one entry in the Syria timeline. The full Key Events surface carries every dated turning point with its filters and its essential subset, and this event in place shows what came before and after it. How Vigil grades, dates and sources its claims is set out in the methodology.