Sunday, January 18, 2026

Syria–SDF Ceasefire Raises High-Stakes Questions Over ISIS Detainees and Kurdish Future

By Yiannis Damellos
With reporting from BBC News and additional analysis
January 18, 2026
MIDDLE EAST

A nationwide ceasefire announced by Damascus and the Kurdish‑led Syrian Democratic Forces (SDF) has ended nearly two weeks of fighting and marked one of the most consequential shifts in Syria’s post‑war power balance in years. But while the agreement promises a “unified Syria,” it also raises urgent questions about the fate of thousands of Islamic State (IS) detainees and the long‑term political ambitions of Syria’s Kurds. Furthermore, the ceasefire has important implications that extend beyond Syria's borders.

According to BBC News, the deal forms part of a 14‑point agreement that will integrate the SDF into Syria’s military and state institutions, while returning control of key territories in al‑Hasakah, Raqqa, and Deir Ezzor to the central government. Syrian President Ahmed al‑Sharaa said the agreement would allow state institutions to “reassert control” over most of the country.

The ceasefire was reached following talks in Damascus with the US special envoy to Syria, Tom Barrack, who praised it as a step toward stability. SDF commander Mazloum Abdi confirmed the agreement and said the ceasefire was necessary to avoid a broader war, telling Kurdish channel Ronahi that the fighting had been “imposed” on his forces (BBC).


ISIS Prison Control: A Volatile Transfer of Power


One of the most sensitive provisions of the agreement is Damascus’s assumption of responsibility for prisons and detention camps holding tens of thousands of Islamic State fighters and their families, currently guarded by the SDF.

For years, the SDF—backed by the United States—has served as the primary jailer of captured IS militants, a role widely viewed in Washington and Europe as essential to preventing a resurgence of the group. The SDF’s control over facilities such as al‑Hol and Hasakah prison has been imperfect but consistent, despite repeated IS attack attempts and internal unrest.

The transfer of this responsibility to the Syrian government is fraught with risk.

Damascus has pledged to remain part of the US‑led coalition against Islamic State, a commitment reaffirmed in the agreement, according to the BBC. However, Western intelligence agencies and human rights organizations have long documented Syria’s history of tactical dealings with jihadist networks during the civil war, including periods in which extremist groups were tolerated or manipulated to weaken common enemies.

While there is no public evidence that the current Syrian leadership intends to release IS detainees, analysts warn that the prisons represent both a security burden and a potential bargaining chip. The sheer scale of the detainee population—many of them foreign fighters whose home countries have refused repatriation—makes sustained detention costly and politically inconvenient.

“There is no absolute guarantee,” a former US counterterrorism official told international media in past reporting, “that these fighters won’t be selectively released, traded, or redirected if the strategic calculus changes.”

That concern is particularly acute for the Kurds. Should relations between Damascus and Kurdish forces deteriorate, there is widespread fear that former IS militants could be weaponized indirectly—through neglect, release, or redeployment—against Kurdish areas. The continued imprisonment of fighters together with their families, especially in camps like al‑Hol, also risks further radicalization if oversight weakens.


Kurdish Rights: Historic Recognition, Strategic Trade‑Off


The agreement also includes a landmark pledge by Damascus to recognize Kurdish cultural and linguistic rights, granting Kurdish official language status and recognizing Nowruz, the Kurdish new year, as a national holiday. As the BBC notes, this marks the first formal recognition of Kurdish rights since Syria’s independence in 1946.

This is more than symbolic. For decades, Kurdish language use and cultural expression were suppressed by the Syrian state. Official recognition could reshape education, local administration, and political participation for millions of Kurds.

Yet the recognition comes at a price.

Under the agreement, the SDF will be integrated into Syria’s military and interior ministries, following a vetting process, and Kurdish-led civilian institutions will be absorbed into the state. Oil fields, border crossings, and revenue streams that underpinned Kurdish self-rule will revert to Damascus.


Does this mean the Kurds are abandoning aspirations for an independent state?


Most Kurdish political analysts say the answer is yes—at least for now. Even at the height of their autonomy, Syrian Kurdish leaders stopped short of formally declaring independence, instead pursuing a model of decentralized self-administration within Syria. Years of US retrenchment, Turkish hostility, and regional isolation have further dimmed prospects for statehood.

Mazloum Abdi’s insistence, quoted by Kurdish media and cited by the BBC, that the SDF will protect the “achievements” and “specific characteristics” of Kurdish administration, suggests a pivot toward negotiated autonomy rather than secession.

In practical terms, integration appears to mean survival—preserving language rights, some local governance, and security guarantees—rather than pursuing a sovereign Kurdish state that lacks international backing.

The ceasefire carries significant implications beyond Syria’s borders.


Turkey: Strategic Relief and Political Leverage


For Turkey, the ceasefire addresses a core national security concern: the long‑term survival of an armed, autonomous Kurdish entity along its southern border.

Ankara has long regarded the SDF as inseparable from the PKK, which Turkey, the U.S., and the EU designate as a terrorist organization. Turkish officials have repeatedly opposed any arrangement that legitimizes Kurdish self-rule in northern Syria.

The agreement’s provision to dissolve the SDF as an independent military force and integrate its fighters into Syria’s national army and security services directly aligns with Turkey’s strategic objectives.

In Turkish media commentary and prior government statements, Ankara has made clear that it prefers centralized Syrian state control—even under a government it does not fully trust—over Kurdish autonomy backed by Western powers.

Key advantages for Turkey include:

  • Erosion of Kurdish self-rule: The return of oil fields, border crossings, and prisons to Damascus weakens the economic and political foundations of Kurdish autonomy.
  • Reduced justification for Turkish incursions: Ankara has long cited SDF control as a reason for cross‑border military operations. Integration under Damascus narrows that rationale.
  • Expanded influence in Damascus: Unlike the Assad era, the new Syrian leadership has been supported diplomatically and operationally by the United States and Turkey, rather than being dependent on Iran and Russia.
Turkey’s role as a mediator and sponsor—alongside Washington—strengthens its claim to be an indispensable regional power broker.

Israel: Reduced Iran, Increased Turkey—A Mixed Outcome


From Israel’s perspective, the ceasefire produces both reassurance and unease.

On the positive side, Israeli officials have consistently viewed any reduction in Iranian military entrenchment in Syria as a strategic gain. Assad’s reliance on Iran allowed Hezbollah-linked forces to operate near Israel’s borders, prompting years of Israeli airstrikes.

If the new Syrian government is genuinely less aligned with Tehran, Israel may welcome the shift—quietly.

However, Israel is also wary of Turkey’s expanding footprint in Syria.

Relations between Israel and Turkey have been strained for years, particularly over Gaza and broader regional alignments. Ankara’s growing role in Syria introduces a new variable: a Sunni regional power with ambitions, influence, and ideological differences from Israel.

Israeli security analysts, writing in regional outlets, have cautioned that:

  • Turkey’s influence could translate into new constraints on Israeli freedom of action in Syrian airspace.
  • A stronger, centralized Syrian state—aligned neither fully with Iran nor friendly to Israel—may seek to reassert sovereignty over areas Israel prefers to keep fragmented.
  • The integration of former SDF fighters into Syrian forces could eventually create a more capable military structure, even if weakened in the short term.

At the same time, Israel is likely reassured that Islamic State detainees remain formally imprisoned and that Damascus has recommitted to the US‑led coalition, reducing the immediate risk of jihadist chaos on its northern front. 

Iraq, which faces its own challenges with IS remnants, fears that instability or mismanagement of detainees could spill across the border. Iraqi officials have long warned that a mass prison break or release in Syria would have immediate security consequences.

A Fragile Peace


As the BBC reports, President al‑Sharaa has argued that it is unacceptable for a militia to control a quarter of the country and its major resources. The ceasefire addresses that concern—but whether it delivers lasting stability remains uncertain.

The agreement trades Kurdish military autonomy for cultural recognition and state integration, while shifting responsibility for thousands of IS detainees to a government with a complicated past. It may avert immediate war, but it replaces open conflict with a series of unresolved tests.

The central question now is whether Damascus can be both a reliable embankment of the Islamic State and a credible guarantor of Kurdish rights—or whether this ceasefire will merely postpone the next crisis.

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