Iran Drops Ballistic Missile Range Limit: Implications for Global Security

Iran's Islamic Revolutionary Guard Corps (IRGC) has announced the removal of its self-imposed 2,000km (1,250-mile) limit on the range of its ballistic missiles. This move has sparked speculation about Tehran's intentions regarding targets beyond the Middle East. IRGC spokesman Brigadier-General Hossein Mohebbi stated at a press conference in Tehran on Saturday, "This limitation has been lifted for us." While Mohebbi did not confirm if Iran already possessed missiles exceeding this range, he indicated that Iran would demonstrate its capabilities through actions rather than words, signaling a shift towards an "offensive" military doctrine.

The announcement follows a warning from Supreme Leader Mojtaba Khamenei that any threat from the United States or Israel would be met with a response unbound by geography. Khamenei also suggested that Iran needs to resolve the ongoing "no war, no peace" situation, particularly concerning the volatile Strait of Hormuz and the US naval blockade on Iranian ports. This development occurs amidst intensified diplomatic efforts to end the US-Israel war on Iran, with President Trump expressing optimism about positive momentum towards resolving military hostilities after talks with Qatari Prime Minister Sheikh Mohammed bin Abdulrahman bin Jassim Al Thani in Washington, DC.

The lifting of the range limit raises questions about its practical implications. Iran already possesses the operational capability to launch missiles beyond 2,000km but had maintained the cap for regional deterrence. Iranian missiles can currently reach the entire Arabian Peninsula, the Levant, most of Egypt, and parts of Southeastern Europe, including Greece, Bulgaria, Romania, Albania, North Macedonia, and Serbia. For Gulf states, this announcement changes little, as they already fall within Iran's 2,000km range and have been targets of Iranian missile strikes since the US and Israel initiated their war on February 28.

This change could enable Iran to position rocket launchers in its eastern regions, potentially requiring a greater range to target Israel. The US and its European allies are concerned that Iran might target US bases in the Indian Ocean and Europe. In March, the United Kingdom alleged that Iran had fired missiles towards the joint US-UK base at Diego Garcia, located approximately 4,000km from Iran. Tehran denied these accusations, labeling them an "Israeli false flag" operation. In 2019, the UK, France, and Germany estimated that a lighter-warhead version of Iran's Khorramshahr missile could have a range of about 3,000km. US officials have also suggested that technology from Iran's space program could be adapted for intercontinental ballistic missiles, though Iran currently does not possess such weapons.

Muhanad Seloom, an assistant professor of international politics and security at the Doha Institute for Graduate Studies, noted that the alleged Diego Garcia launch already signaled Iran's capacity. He stated, "Iran denied doing that, but they wanted to signal that they have the capacity. So yes, they do have the capacity." Seloom, also an honorary research fellow at the University of Exeter, pointed to Iran's space launches, suggesting that similar rockets could theoretically reach anywhere globally, though effectiveness remains a separate issue. He estimated Iran could field missiles with a range of approximately 5,000km.

Iranian security analyst Mohamed Taheri echoed this sentiment on Iran's state-run Channel 3, asserting that range ceased to be a technical obstacle for Iran by the mid-2010s. "Even now we have no technical limitation in reaching ranges above 2,000km," he said. "If we were to increase that range to 4,000km, we would certainly have most of Europe within our missile range, and roughly most of North Africa as well."

The IRGC's decision to lift the range limit appears to contradict previous assurances given to Europe regarding missile capabilities. European relations with Iran have been strained due to its nuclear program and regional ambitions. The European Union's designation of the IRGC as a "terrorist" group and its allowance of US military bases on the continent have drawn Iran's criticism.

Iran had previously issued warnings to Bulgaria concerning US aircraft operating from its territory. In April, Tehran sent a diplomatic note cautioning Bulgaria against allowing US military aircraft to use its airports for operations against Iran. Following Bulgaria's parliamentary approval in July to host up to eight US KC-135 refuelling tankers at Bezmer airbase, Iran's Ministry of Foreign Affairs spokesperson Esmaeil Baghaei stated that Bulgarian decision-makers "must bear responsibility." This was Iran's third warning to Sofia. In August, reports indicated that US bases in countries like Bulgaria were assessed as potential targets, with the threat to Europe described as real but localized to the continent's south and southeast. Two US tankers departed Bezmer on August 21.

Last month, the UK's spy chief reported an increase in Iran's targeting of military bases in Europe, following a suspected plot against RAF Fairford, an airbase used by US bombers. This incident led the US to evacuate its military jets from the facility due to security concerns. Tehran denied involvement, calling it a "false flag" operation. On Monday, the US military evacuated aircraft from a second British base, RAF Mildenhall, citing a "threat from Iran." The refuelling tankers were relocated to Germany and other locations, while US officials were assessing the precise nature of the threat. The UK Ministry of Defence did not confirm the reason for the evacuation, stating that "Aircraft and other assets move regularly according to operational requirements." Bases in the UK, Germany, and Romania are among other European locations used by the US during the conflict.

Taheri suggested that Iran might set aside geographic restraints based on diplomatic relations and potentially strike bases in Europe. Seloom described the announcement as "worrying… but not alarming" for European governments, explaining that missiles would need to travel a significant distance to reach mainland Europe or the UK, providing NATO members with early warning and interception opportunities. He argued that threatening Europe would not serve Iran's interests, as European governments did not support the US war and advocated for a diplomatic solution, despite facing high energy costs. However, he warned that this could change if Iran is perceived as a threat to international security, drawing parallels to Iraq's situation before the 2003 invasion.

Seloom concluded that threatening Europe or the UK would be indefensible for Iran and that lifting the range limit suggests Tehran views the current conflict as existential, a situation that should concern the entire region. "When you give them the idea that you have only one option, is to die … they can do anything. There would be no red lines," he stated.

The decision to lift the self-imposed cap, which Iran had previously used to reassure European countries, could be interpreted in several ways. Mohebbi also suggested that if Iran decided to pursue a nuclear weapon, the necessary preparations would be made. One interpretation is deterrence: a warning to Washington and European nations hosting US aircraft that renewed strikes could provoke a broader response. Iran's prior threats to Bulgaria were seen as an effort to dissuade European governments from supporting US operations.

Tehran may also be seeking diplomatic leverage. The lifting of the range limit could be offered as a concession, implying that any future restraint would come at a negotiating price. Seloom believes it's a combination of factors, suggesting that Tehran sees a limited window before the new US Congress convenes in January, during which President Trump may seek a deal to present as a success. He posited that the decision aims to "push the Trump administration to go for a deal, not to launch another campaign of military action." With Trump having threatened infrastructure targets, Iran is signaling its willingness to escalate further.

Western concerns regarding Iran's missile program have been ongoing for over a decade, intertwined with its nuclear activities. The 2015 nuclear deal, the Joint Comprehensive Plan of Action (JCPOA), imposed limits on Iran's nuclear program in exchange for sanctions relief, and UN Security Council Resolution 2231 curbed its ballistic missile program. These curbs expired in October 2023, leading to renewed Western concerns. In September 2025, France, Germany, and the UK reimposed sanctions on Iran over its nuclear enrichment activities, which Tehran defended after the US withdrawal from the JCPOA. President Trump identified the destruction of Iran's missile and nuclear programs as primary objectives of the war initiated in February. US Defense Secretary Pete Hegseth reiterated the goal of destroying Iranian offensive missiles and production capabilities. However, experts and US intelligence assessments indicated that Iran's missile program was years away from posing a direct threat to the US homeland. Prior to the war, Iran possessed the largest stockpile of ballistic missiles in the Middle East, estimated between 2,500 and 6,000 missiles.