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Conflict coverage · Syria

Eastern Corps

Force Atlas

Eastern Corps

الفيلق الشرقي

SYRIA · SYRIAN ARMY · CORPS

Part of Syrian Army

Transitional governmentActiveSubordination reported
Assessed as of
2026-06
Reviewed
2026-09-09
Confidence
low
  • State affiliation · Syria
  • Vigil category device · not official insignia
Identity provenance

State affiliation: Syria.

Vigil category device — drawn from this record’s own domain, echelon and role. Not an official insignia.

In brief

The corps for the east — Deir ez-Zor, al-Bukamal, Raqqa, Hasakah and the Iraqi border — grouping the 42nd, 66th, 72nd and 86th Divisions, commanded by a former HTS eastern-sector commander, and the corps into whose area the January 2026 fighting brought the Arab-majority northeast.

Scope
Structure, role, lineage and links. 2 subordinate records published.
Subordination
Subordination reported
Sources
2 on the record
Record state
Partial

Broad area of activity

Deir ez-Zor, al-Bukamal, Raqqa, Hasakah and the Iraqi frontier

Notable history

The eastern corps holds the territory that changed hands last: the Arab- majority northeast that passed to state control in the January 2026 fighting as tribal components defected from the SDF, the Euphrates valley, and the Iraqi border with its al-Bukamal crossing. The compilation that maps the corps assigns it the 42nd, 66th, 72nd and 86th Divisions and names its commander as a former HTS eastern-sector commander. Its area is also the one where counter-ISIS responsibility transferred to the state under the January 2026 agreement and where the detention and camp system sits. Two of its divisions are authored below; the 42nd and 72nd are named here only.

Strengths

A single command over the whole eastern file that no authority has held since 2011.

Limitations

A corps announced in June 2026 over divisions built from factions with documented abuse records in this very region, holding tribal territory whose loyalty proved conditional in January. No strength or basing is published.

Subordinate formations

Rows are layout only — position and order carry no hierarchy, importance, sequence or strength. Every record shown is an immediate subordinate of the selected organisation.

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Lineage & institutional history

Formed 2026-06

One of five regional corps announced in late June 2026; official confirmation of the corps layer was pending in the compilation this record rests on, and the grouping is carried as reported.

Campaigns

Campaigns naming this organisation as a participant. The campaign record owns the relationship and grades it; this list is computed.

  • The anti-ISIS campaign and the residual insurgency Reported participant · Since September 2014 · low confidence · as of 2026-06

    The corps in whose area counter-ISIS responsibility now sits; announced June 2026, confirmation pending, no operation attributed.

Assessed as of2026-06Last reviewed2026-09-09

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Related structure

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

Participates in

Campaigns whose participant list names this organisation.