1. Introduction
Airpower has long been a central component of state sovereignty and modern warfare. Within the Islamic Republic of Iran, airpower carries not only strategic but symbolic significance. The Islamic Republic of Iran Air Force (IRIAF) – known in Persian as Nīrū‑ye Havāyī‑ye Ārtesh‑e Jomhūrī‑ye Eslāmī‑ye Īrān – functions as the aerial warfare branch of the regular Iranian Army (Artesh). It traces its lineage to the Imperial era but has evolved under revolutionary, geopolitical, and strategic forces that reflect Iran’s unique security environment.
2. Historical Foundations
2.1 Pre‑Revolutionary Origins and Growth
Iran’s initial foray into military aviation can be traced back to the early 20th century during the Qajar dynasty. However, it was under Reza Shah Pahlavi in the 1920s that the formal air arm began taking shape. By the late 1920s and 1930s, Iran procured early European aircraft, gradually building an institutional framework for military aviation.
During the Pahlavi era (1925–1979), the Imperial Iranian Air Force (IIAF) emerged as one of the region’s most capable Western-equipped air arms. By the 1970s, Iran had procured advanced aircraft such as the F‑4 Phantom II, F‑5 Tiger II, and notably became the only operator outside the United States of the F‑14 Tomcat interceptor, paired with the long‑range AIM‑54 Phoenix air-to-air missile. These acquisitions signified Iran’s strategic partnership with the United States and reflected its role as a regional security guarantor in the Gulf.
2.2 The 1979 Revolution and Transition
The 1979 Islamic Revolution fundamentally changed Iran’s political, diplomatic, and military orientation. The Imperial Iranian Air Force was renamed as the Islamic Republic of Iran Air Force (IRIAF). The upheaval led to the departure and purge of many experienced officers, compromising institutional knowledge at a critical juncture. Relations with the United States severed, terminating access to spare parts, technical support, and future equipment deliveries.
This severance imposed enduring operational stress on the fleet: Western-origin combat aircraft became increasingly difficult to maintain without external support. In response, Iran developed reverse-engineering capabilities, domestic maintenance programs, and indigenous aerospace components — approaches that continue to shape the IRIAF’s evolution.
2.3 The Iran‑Iraq War and Operational Maturation
Shortly after the revolution, Iraq invaded Iran in 1980, initiating an eight-year conflict that placed the IRIAF at the forefront of national defense. Despite internal disruptions, IRIAF units conducted extensive operations — from counter-air campaigns to ground support missions. The early Operation Kaman 99, involving nearly 200 aircraft in retaliation for Iraqi strikes, remains one of the largest air operations in Iranian military history.
During the war, Iran adapted to wartime exigencies, including maintaining aircraft through cannibalisation, improvisation, and developing early indigenous aerospace production. These adaptive practices laid the groundwork for later technological developments.
3. Organisation, Command Structure, and Roles
3.1 Institutional Placement
The IRIAF is the aerial branch of Iran’s regular army (Artesh) and operates under the broader command of the Ministry of Defence and Armed Forces Logistics (MODAFL). As of early 2025, the IRIAF was estimated to field around 330–350 aircraft with approximately 37,000 personnel.
Command appointments in the regular army are ultimately under Iran’s Supreme Leader, who serves as Commander-in-Chief of all armed forces. The IRIAF’s organisational hierarchy includes a commander, deputy commander, and coordinating officers responsible for operations, training, logistics, and support.
3.2 Tactical Deployment and Air Bases
The IRIAF maintains a network of tactical fighter bases (TFBs) and support airfields across Iran. These installations provide geographical depth and redundancy, crucial for sustaining operations under adverse strategic conditions. Recent construction of new airfields reflects a continued emphasis on dispersal and survivability, allowing forward deployment and defensive readiness.
Emerging radar and early warning networks — including some developed with foreign support — have enhanced Iran’s ability to monitor and control its airspace, albeit with limitations compared to advanced airborne early warning platforms.
4. Inventory and Capabilities in 2025–26
Iran’s air force inventory in the mid-2020s reflects decades of sanctions, divergent procurement, and indigenous adaptation. Rather than a homogenous modern fleet, the IRIAF operates a heterogeneous mix of aged platforms, supplemented by locally produced variants and growing unmanned capabilities.
4.1 Manned Combat Aircraft
F‑14 Tomcat
The IRIAF remains one of the few operators of the Cold War-era F‑14 Tomcat, though its numbers have declined due to age, maintenance challenges, and attrition. These aircraft have historically served as interceptors and airborne radars rather than frontline air superiority platforms.
F‑4 Phantom II
The F‑4 Phantom II — once a workhorse of US and allied air forces — remains a foundational strike and reconnaissance platform for Iran. Despite being outdated by modern standards, these aircraft are maintained through domestic overhaul programs and upgraded avionics when possible.
F‑5 Tiger II and Local Variants
The F‑5 Tiger II, a light fighter originally acquired in the 1960s–70s, persists as a multirole aircraft. Iran has developed local derivatives like the HESA Saeqeh and Kowsar, architectures based on the F‑5, to maintain a limited fleet of combat and trainer aircraft.
Soviet/Chinese and Foreign Platforms
Following isolation from Western suppliers, Iran acquired Soviet and Chinese aircraft, including MiG‑29 Fulcrum, Su‑24 Fencer, and Chinese J‑7/F‑7 variants. Captured Iraqi Mirage F1 jets in the 1990s further diversified the fleet. Operational readiness varies, and logistical bottlenecks remain significant given the breadth of types and sanctions.
4.2 Unmanned Aerial Vehicles (UAVs)
Perhaps the most dynamic segment of Iranian airpower is its UAV fleet. Iranian drones — such as the Shahed‑129, Mohajer‑6, Ababil series, and larger platforms like the Kaman‑22 — provide reconnaissance, strike, and electronic warfare capabilities. Iran’s UAV program has achieved export success and regional use by allied forces. By 2025, UAVs have assumed a central role in IRIAF doctrine, offering cost-effective reach that compensates for conventional fleet shortcomings.
4.3 Transport, Reconnaissance, and Support
The IRIAF operates a variety of support aircraft including transports (e.g., C‑130 Hercules, IL‑76), reconnaissance platforms (e.g., RF‑4E Phantom), aerial intelligence variants, and trainer aircraft. This diverse inventory underpins logistics, battlefield awareness, and training.
5. Doctrine and Strategic Concepts
5.1 Defensive Orientation
Iran’s air doctrine prioritises airspace defence rather than offensive power projection. This orientation stems from geopolitical constraints, regional threat perceptions, and technological asymmetries with potential adversaries such as the United States and Israel. Given its limitations in conventional fighters, Iran emphasises deterrence and denial strategies — seeking to make aggression costly through layered defenses and asymmetric threats.
5.2 Asymmetry and Air Defense Integration
Beyond the IRIAF, Iran’s strategic air doctrine is integrated with its air defence branch (Islamic Republic of Iran Air Defense Force), which operates surface-to-air missiles, anti-aircraft systems, and radar networks. Although formally separate since 2008, air defense complements IRIAF activities, creating an interconnected defensive umbrella.
Iran’s doctrine also embraces unmanned systems, electronic warfare, and an expanding ballistic missile force operated by the Islamic Revolutionary Guard Corps Aerospace Force (IRGC‑ASF). This combined approach — often referred to as asymmetric or layered defense — aims to exploit adversaries’ vulnerabilities rather than match their conventional capabilities aircraft-for-aircraft.
6. Modernisation Challenges and Efforts
6.1 Structural and Logistical Constraints
Ongoing international sanctions have been the primary constraint on the IRIAF’s conventional modernisation. Restrictions on critical components — engines, avionics, sensors — have throttled acquisition of new platforms and limited upgrades to older fleets. These pressures have compelled Iran to develop domestic aerospace industries capable of manufacturing parts and conducting overhauls.
6.2 Indigenous Development and Upgrades
Iran’s aerospace industry has sought to mitigate sanctions by reverse-engineering legacy aircraft components and producing indigenous systems. This includes avionics upgrades, avionics retrofits, and local manufacturing of parts for F‑14, F‑4, and F‑5 aircraft. While these efforts do not produce capabilities comparable to modern Western fighters, they extend the operational life of existing aircraft and reinforce a national defence industrial base.
6.3 Emerging Platforms and Technology Focus
As of 2025–26, Iran continues to prioritise fields where it has comparative advantages: UAV development, electronic warfare capabilities, and missile technology. These domains offer disruptive potential in regional conflicts and serve deterrent purposes. UAVs in particular provide persistent surveillance and strike options that circumvent pilot risk and reduce operational costs.
7. Strategic Context and Recent Developments (2025–26)
7.1 Regional Tensions and Conflict Dynamics
In 2025 and 2026, the IRIAF operated within an increasingly contested regional security environment. A reported escalation of conflict with Israel and the United States — sometimes characterised as the Iran–Israel War — has involved large-scale aerial operations, ballistic missile engagements, and drone attacks. Such hostilities dramatically tested Iran’s air and space posture.
In early 2026, joint U.S. and Israeli operations targeted Iranian air defense systems and key military infrastructure, significantly challenging Iran’s ability to control its airspace. Reports indicate Israel conducted what it described as its largest aerial campaign ever, involving hundreds of sorties targeting approximately 500 Iranian sites.
7.2 Attrition of Legacy Platforms and Readiness Issues
Conflict-related attrition and ongoing maintenance issues further strained Iran’s ageing inventory. Videos and reports from early 2026 suggested that some historic IRIAF aircraft — notably the F‑4 Phantom and F‑5 Tiger II — were bombed on the ground, depriving Iran not just of combat assets but valuable spare parts stockpiles.
Moreover, several analyses stated that the IRIAF’s conventional fighters were largely absent from direct air engagements, possibly due to readiness issues and the threat posed by advanced enemy aircraft. This operational silence underlined structural limitations within Iran’s conventional air arm.
7.3 UAV Emphasis and Asymmetric Response
While conventional aircraft lagged behind, Iranian UAVs — including Shahed series drones — became central to Iran’s aerial responses and regional strategy. Large numbers of inexpensive drones aimed to saturate adversary defenses and maintain operational tempo. Such tactics mirror asymmetric approaches seen in other conflict theaters, emphasising persistent, cost-effective aerial presence.
7.4 Ballistic Missiles and Integrated Defence
Parallel to conventional air force operations, Iran’s ballistic missile arsenal — one of the largest in the Middle East — continued to play a key strategic role. Although primarily under the IRGC‑ASF, the missile force’s activities are part of a broader aerial and strategic deterrent posture. The development and deployment of missiles with ranges up to several thousand kilometres complicate adversary calculations and provide long-range strike options.
8. Strategic Assessment and Prospects
8.1 Strengths and Limitations
The IRIAF’s greatest strength lies in its adaptability and innovation in the face of long-term sanctions. Through domestic maintenance, upgrades, and unmanned systems, Iran has preserved a credible aerial presence. Its integrated air defense doctrine – combining conventional fighters, surface-to-air systems, ballistic missiles, and UAVs – reflects a multifaceted approach to deterrence.
However, Iran’s conventional manned aircraft fleet remains technologically inferior to contemporary Western and regional air forces. Systems such as F‑15, F‑16, and especially fifth-generation fighters pose overwhelming challenges in conventional air warfare. Moreover, decades of obsolescence and spare parts scarcity constrain readiness, forcing the IRIAF to rely heavily on non-traditional platforms.
8.2 The Role of Domestic Industry and Future Outlook
Iran’s aerospace industry – particularly in UAVs and missile technologies – is likely to continue growing. This orientation aligns with broader strategic priorities emphasizing deterrence and cost-asymmetric responses. The domestic development of avionics, remote systems, and tactical unmanned platforms represents an evolutionary path that acknowledges Iran’s comparative advantages.
Whether Iran can field modern, jet-powered combat aircraft on par with global standards remains uncertain. Prospects for foreign acquisitions – such as Russian platforms – are constrained by sanctions, financial cost, and geopolitical complications. Thus, indigenous innovation and asymmetric doctrine will remain central to the IRIAF’s trajectory into and beyond 2026.
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