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THE CHANGING ROLES OF THE IRANIAN MILITARY
The various branches of Iran’s armed forces maintained relatively distinct operational focuses until recently. Tehran’s premier fighting force, the IRGC, is formally tasked with protecting the Islamic Revolution against internal and external threats, as well as exporting the revolution beyond Iran’s borders. The IRGC’s clandestine paramilitary wing, the Quds Force, has historically assumed sole responsibility for conducting Iran’s military activities abroad. The IRGC’s service branches--the ground forces (IRGC-GF), navy (IRGC-N), and air force (IRGC-AF)--have focused on protecting Iranian territory against external and internal threats since the Iran-Iraq War. The Artesh is Iran’s conventional military. The Iranian constitution tasks it with the much more limited mission of defending Iran’s territorial integrity rather than defending, let alone expanding, the revolution. These operational distinctions are starting to fade, however.
Iran’s growing commitments at home and abroad have placed new demands on the IRGC. The Quds Force is currently managing Iran’s military activities across Iraq, Syria, Yemen, and Lebanon. Its model of expeditionary warfare, which partners local proxy forces with a small number of Quds Force trainers and advisors, proved inadequate on the battlefields of Syria.
[3] Iran’s leadership decided instead to develop a quasi-conventional model of expeditionary warfare relying on the IRGC conventional forces in addition to the Quds Force and its proxies.
[4] Combat formations drawn from the IRGC-GF’s conventional brigades and divisions have therefore been supporting Iranian proxies and Quds Force activities in Syria and to a much more limited extent in Iraq for more than a year.
[5]IRGC-GF units also combat unrest along Iran's borders and among restive ethnic minorities, however. Containing unrest in Iranian Kurdistan and Sistan and Baluchistan province, for example, create significant drains on IRGC resources.
[6]
Iran’s military leadership has expanded the use of the Artesh in Iranian military operations abroad, partly in response to these growing force requirements. The Artesh is an important component of Iran’s military capability, although it has long been overshadowed and obscured by the IRGC. The Artesh has greater manpower and fields much of Iran’s more advanced conventional weaponry.
[7]Iran’s coordinated military campaign against ISIS in Iraq, for example, required cooperation between the IRGC and Artesh at least at the strategic level, although some reports also indicate the possible use of Artesh Air Force airframes to conduct strikes against ISIS positions in Iraq.
[8]
The trajectory of Artesh-IRGC cooperation indicates that the Iranian regime has decided to re-posture elements of the Artesh force structure toward supporting the IRGC’s military operations abroad. Recent rhetoric hints at a fundamental transformation in the Artesh’s orientation away from its previous mission of static defense. Senior Artesh commanders, for example, have come to redefine their constitutionally designated mission of protecting Iran’s borders to include expeditionary deployments as part of a larger preemptive doctrine.
[9] The Artesh rank-and-file have probably welcomed the evolution in their mission in order to prove their relevance to state officials, argue for greater resources, and gain combat experience.
[10]
Artesh forces have already demonstrated a limited capability to support IRGC activities at the operational level. They did so most clearly when Tehran assigned Artesh ground forces to the direct command of the IRGC in at least two separate deployments around Aleppo during the first half of 2016.
[11] The precise extent of the Artesh’s involvement in Syria remains unknown, although it is certainly broader than these two deployments. Transport planes owned by the Artesh Air Force operate in support of IRGC-backed activities in Syria, for example.
[12]
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