The U.S.–Israel–Iran War: Strategic and Military Dynamics

Introduction

The outbreak of large-scale hostilities between the United States, Israel, and Iran in late February 2026 has triggered one of the most serious security crises in the Middle East in decades. What began as coordinated air strikes against Iranian military and nuclear-related targets rapidly escalated into a multi-domain conflict involving missile warfare, maritime incidents, regional proxy mobilisation, and diplomatic confrontation across several theatres. The assassination of Iran’s Supreme Leader Ayatollah Ali Khamenei during the opening phase of the campaign dramatically transformed the political and strategic nature of the conflict. Rather than producing immediate political collapse in Tehran, the strike intensified domestic mobilisation inside Iran and hardened the resolve of Iranian military institutions. Within days, the confrontation had expanded beyond the immediate battlefield, affecting Gulf states hosting U.S. bases, drawing in regional proxy networks, and triggering responses from global actors including China and leading religious authorities in the Muslim world.

This report provides a comprehensive analysis of the crisis, examining the origins of the conflict, the strategic objectives of the main actors, the military dynamics shaping the battlefield, the competing narratives emerging from both sides, and the broader regional implications of a war that now threatens to reshape the Middle Eastern security environment.

Origins of the Conflict

The escalation began on 28 February 2026 when the United States and Israel launched a coordinated campaign of strikes across Iran under the operational framework known as Operation Epic Fury. The attacks targeted a wide range of sites including missile storage facilities, military bases, command centres, intelligence institutions, and infrastructure associated with Iran’s nuclear programme.

Iranian sources reported strikes against facilities linked to the Ministry of Defence, the Ministry of Intelligence, and the Atomic Energy Organisation of Iran, as well as military complexes such as Parchin. The strikes occurred despite ongoing diplomatic negotiations between Iran and the United States regarding the future of Iran’s nuclear programme. Mediators had indicated that negotiations had made notable progress, including proposals for strict monitoring and limitations on enriched uranium stockpiles. Washington justified the attacks through a combination of strategic arguments. American officials claimed the operation was intended to prevent Iran from acquiring nuclear weapons capability, dismantle ballistic missile infrastructure, and weaken Iran’s support network for regional militant groups such as Hezbollah, Hamas, and the Houthis. At the same time, statements from both American and Israeli leaders suggested broader political ambitions, including the possibility of regime change in Tehran. The killing of Supreme Leader Ayatollah Ali Khamenei during the opening strikes dramatically escalated the confrontation. The assassination transformed the military campaign into a political conflict centred on the survival of Iran’s governing system and triggered widespread mobilisation across Iranian society.

Strategic Objectives of the Main Actors

United States and Israel

The United States and Israel appear to be pursuing several interconnected strategic objectives. The most immediate aim is the degradation of Iran’s military capabilities, particularly its ballistic missile programme, drone infrastructure, and naval assets in the Persian Gulf. These systems represent the core of Iran’s asymmetric deterrence strategy and are critical to its ability to threaten both Israel and U.S. military installations across the region. A second objective involves weakening Iran’s regional influence by disrupting its network of allied armed groups. Iran has spent decades cultivating proxy forces across the Middle East, and the destruction of command structures or supply routes could significantly affect Tehran’s ability to project power beyond its borders.

A third and more politically sensitive objective relates to regime stability inside Iran. Statements encouraging the Iranian population to challenge the existing government suggest that some policymakers view internal political change as a potential outcome of the campaign.

Iran

Iran’s strategic objectives differ significantly from those of its adversaries. Tehran appears primarily focused on demonstrating resilience and imposing costs on its opponents rather than achieving decisive military victory. Iranian leaders have framed the conflict as an act of aggression against Iranian sovereignty and emphasised the defence of national independence. Iran’s broader strategy is built around asymmetric warfare. Rather than attempting to match the technological superiority of American and Israeli forces directly, Tehran relies on ballistic missiles, drones, proxy forces, and maritime pressure to create multiple fronts of confrontation and complicate the strategic calculations of its adversaries. By sustaining attacks on regional bases and infrastructure, Iran aims to increase the economic and political costs of the war, particularly for the United States and its Gulf partners.

Military Dynamics of the Conflict

Air Campaign

The conflict has been dominated by a sustained air campaign conducted primarily by the United States and Israel. Fighter aircraft and long-range strike platforms have carried out repeated waves of attacks against Iranian military infrastructure across multiple cities including Tehran, Isfahan, Karaj, and Qom.

These strikes have targeted command centres, missile launchers, radar installations, and facilities associated with the Islamic Revolutionary Guard Corps. By striking internal security structures such as the Basij and intelligence headquarters, the campaign appears designed not only to degrade military capabilities but also to weaken the regime’s internal control mechanisms.

From a military perspective, the air campaign reflects the technological advantages of the United States and Israel in precision-guided munitions, intelligence surveillance systems, and long-range strike capabilities. However, the geographical size of Iran and the dispersion of many military facilities complicate efforts to achieve rapid strategic results.

Missile Warfare

Iran’s primary response has centred on ballistic missile and drone attacks targeting Israel and U.S. assets across the region. Within the first days of the conflict, Iranian forces launched large numbers of ballistic missiles toward Israeli territory, triggering extensive use of Israel’s multi-layered air defence system.

Israel relies on a combination of defensive systems including Iron Dome for short-range rockets, David’s Sling for medium-range threats, and Arrow systems designed to intercept ballistic missiles. While these systems have successfully intercepted many incoming projectiles, sustained missile barrages pose a significant logistical challenge. Each interception requires expensive interceptor missiles, and prolonged attacks risk depleting available stocks. Iran’s missile capabilities therefore represent a central component of its strategy. Even if many missiles are intercepted, the cumulative pressure on Israeli air defences and civilian infrastructure creates both military and psychological effects.

Drone Warfare and Asymmetric Capabilities

Iran has also relied heavily on drone warfare, particularly through the Islamic Revolutionary Guard Corps Navy. Suicide drones have been used to target U.S. bases and military facilities across the Persian Gulf. These systems are relatively inexpensive compared to advanced missile systems and allow Iran to conduct persistent attacks with limited financial cost. The use of drones reflects a broader trend in modern warfare in which relatively low-cost unmanned systems can challenge sophisticated military platforms. By deploying large numbers of drones simultaneously, Iranian forces aim to saturate defensive systems and increase the probability of successful strikes.

Maritime Dimension

The maritime domain represents another critical front in the conflict. Iranian naval units have reportedly targeted American naval assets and commercial shipping routes. The strategic significance of the Persian Gulf and the Strait of Hormuz makes this dimension particularly important. Roughly one-third of the world’s seaborne oil trade passes through the Strait of Hormuz. Any disruption to maritime traffic in this region could have immediate consequences for global energy markets. By threatening shipping lanes and naval vessels, Iran is able to exert pressure not only on its immediate adversaries but also on the wider international community.

Proxy Warfare

Another significant military dimension involves the potential mobilisation of Iran-aligned armed groups across the region. Militias in Iraq have already threatened attacks on American forces stationed in the country. Hezbollah in Lebanon and Houthi forces in Yemen represent additional potential theatres of escalation.

The activation of proxy forces would transform the conflict into a multi-front confrontation, forcing the United States and Israel to divide their attention across several geographic areas simultaneously.

Domestic Mobilisation and Strategic Narratives

Inside Iran, the conflict has been accompanied by large-scale public mobilisation. Nationwide vigils and mourning ceremonies following the death of Ayatollah Khamenei have been portrayed as evidence of national unity and resistance. Iranian officials have consistently framed the conflict as an act of aggression carried out by foreign powers seeking to impose political change on the country. Reports suggesting possible negotiations between Iranian officials and American intelligence services have been dismissed as psychological warfare. Iranian leaders have also issued strong warnings regarding potential escalation. Statements from Iranian military officials indicated that any attack on Iranian diplomatic missions abroad could trigger retaliation against Israeli embassies worldwide. Such declarations signal that Tehran is prepared to widen the conflict if it perceives further escalation.

Regional and Global Reactions

The conflict has generated widespread concern among regional governments. Gulf states hosting American military bases have found themselves caught between their security partnerships with Washington and their desire to avoid direct confrontation with Iran. Missile strikes affecting cities in Qatar, the United Arab Emirates, Bahrain, and Kuwait have demonstrated the vulnerability of critical infrastructure in the region. These incidents have raised fears about the security of energy facilities, desalination plants, and commercial hubs that underpin the economic stability of the Gulf. Global actors have also reacted to the escalation. China has called for respect for Iran’s sovereignty and urged all parties to cease military operations and return to diplomatic negotiations. Statements from religious authorities, including the office of Grand Ayatollah Ali al-Sistani, have warned that unilateral military action aimed at regime change could create a dangerous precedent in international relations. Within the United States, the conflict has also sparked debate regarding the legal authority of the president to initiate military action without formal congressional approval.

Sustainability of the War

The long-term sustainability of the conflict remains uncertain. The United States possesses extensive military resources and the ability to maintain prolonged air and naval operations. However, political constraints and the risk of regional escalation could limit Washington’s willingness to sustain an open-ended campaign. Israel faces additional challenges. Although public support for the war remains strong, prolonged mobilisation of reservists and the high cost of missile defence systems could place significant strain on the country’s economy and military resources.

Iran, by contrast, is relying on a strategy designed to prolong the conflict and increase the costs for its adversaries. By combining missile attacks, drone warfare, proxy mobilisation, and maritime pressure, Tehran aims to demonstrate that it can sustain resistance despite facing technologically superior opponents.

Conclusion

The confrontation between the United States, Israel, and Iran has evolved into a complex and multi-layered conflict with far-reaching implications for the Middle East and the wider international system. The war now extends across several domains including air, missile, maritime, and proxy warfare. While the United States and Israel possess overwhelming technological and military advantages, Iran’s asymmetric strategy enables it to impose significant costs and prolong the confrontation. The involvement of regional actors and the vulnerability of global energy routes further increase the risks associated with continued escalation.

The conflict has therefore reached a critical stage in which military operations, political calculations, and diplomatic pressures intersect. Whether the war evolves into a prolonged regional confrontation or moves toward negotiated de-escalation will depend on the strategic decisions of the main actors in the coming weeks.