The skies over the Persian Gulf have become a proving ground for the most substantial air defence test the region has faced. Since the end of February, when Israeli and American forces struck Iranian military infrastructure, Tehran has responded with a sustained campaign of ballistic missiles, cruise missiles, and unmanned aerial vehicles. The scale is remarkable: more than 1,000 individual threats have been launched at Gulf states, forcing their air defence systems into continuous operation.
The results, by the numbers, appear initially impressive. According to defence ministry statements,UAE air defences have destroyed 92 per cent and 93 per cent of missiles and drones launched at the country, respectively. Similar high interception rates have been reported across Kuwait, Qatar, Bahrain, and Saudi Arabia.Gulf countries have reported high interception rates of missile attacks, and to a lesser extent, against low-flying drones, with weaponry including the US-made Patriot and Terminal High Altitude Area Defence (THAAD) systems as well as Rafale fighters, F-15s and Eurofighters.
Yet these figures mask a more complex reality.While the UAE intercepted 541 drones, another 35 fell within the country, causing material damage. Civilian infrastructure has suffered: ports, airports, data centres, and hotels across the region have been damaged.Since the Iranian strikes began on 28 February, three people were killed and 78 have been injured according to statements from the UAE defence ministry as of 5 March 2026, with the civilians killed being foreign nationals from Pakistan, Nepal, and Bangladesh.
The strategic calculus here involves several competing considerations. At the tactical level, the defence systems are working; most incoming threats are neutralised. But at the operational level, the sustainability of this defence becomes questionable. The asymmetry is stark:estimates suggest that for every dollar Iran spends producing drones, Gulf states may spend $20 to $28 on defensive fire, with individual interceptors often costing more than one million dollars. This cost differential raises a fundamental problem for regional planners.Iran used low-cost Shahed-136 drones to overwhelm Gulf air defences after US-backed airstrikes; the drones are cheap and easy to produce, while interceptors can cost millions.
What often goes unmentioned is that Iran is not simply launching missiles at civilian targets; the regime is strategically degrading the defensive architecture itself.New satellite images from several key military bases in the Arabian Peninsula suggest that Iran is seeking to degrade air defences by destroying US-made radars that detect incoming missiles and drones.A satellite image from March 1 shows smoke rising from a radar site near the Prince Sultan Air Base in Saudi Arabia, where dozens of American planes are stationed, with a tent used to shelter a radar system for a nearby THAAD battery badly charred. Critical nodes of the defence network, particularly early-warning radars that coordinate the layered system, have been directly targeted and damaged.
This matters profoundly for understanding the regional balance. The Gulf defence architecture, built over decades at enormous cost, is not a unified system but rather a collection of national networks with limited integration.Collective coordination among Gulf states remains limited at best and operationally non-existent beyond public statement, according to Ali Bakir, defence analyst and professor at Qatar University. Each country operates its own mix of American, European, and occasionally other systems, each with different communication standards and operational protocols.These systems originate from multiple vendors with differing radar wavelengths, communication standards, and engagement protocols, complicating operational coordination, particularly in scenarios involving saturation or multi-axis attacks.
Reports indicate thatat least one of the United States' Gulf allies is already running low on crucial interceptor munitions used to defend against Iranian missile and drone attacks. The munitions crunch is not theoretical.In 2025, the US fired up to 20 per cent of the Standard Missile-3 interceptors it was expected to have on hand, and between 20 to 50 per cent of THAAD missiles, with THAAD expenditures being concerning as delivery data suggests the US is firing THAAD missiles at a higher rate without increasing production to match. This problem becomes acute when defending multiple threatened countries simultaneously.
What is often overlooked in the public discourse is that Iran's strategy itself reveals something important about modern asymmetric warfare.Drones are now being used extensively in the current conflict, often alongside ballistic and cruise missiles, as part of coordinated barrages aimed at stretching regional air-defence systems, with analysts noting that this layered approach complicates interception efforts by forcing air defences to track threats at multiple speeds and altitudes simultaneously.In a war of attrition, the drones could be used by Tehran to wear down air defences, opening them up to more damaging attacks.
The diplomatic and political implications extend beyond the immediate conflict.For the first time in history, all the GCC states were targeted by the same actor within 24 hours, with one researcher at Qatar University describing their long-standing nightmare scenario as having happened. This collective vulnerability might strengthen coordination; or it might fracture further if some states feel abandoned by their wealthy neighbours or by their American security guarantors.
For Australian strategic planning, the implications are threefold. First, the performance data from this conflict will shape regional procurement decisions for years. Second, the vulnerabilities revealed here, particularly the coordination problems and the targeting of radar sites, suggest that the layered defence model may require fundamental restructuring. Third, any Australian involvement in regional security architecture—whether through the AUKUS partnership or other arrangements—must account for these structural weaknesses, not assume they can be overcome through additional US systems.
Air defence systems can intercept, but not at scale or at low cost, with saturation attacks remaining a serious concern. The Gulf states have demonstrated that they can defend against Iranian attacks; the question now is whether they can sustain that defence over weeks or months, and whether the economic and strategic cost of doing so remains politically acceptable. Reasonable people can disagree about whether offensive retaliation or negotiated settlement better serves regional stability from this point forward. But on the facts, the structural vulnerabilities in the Gulf defence architecture have been exposed by this conflict, and no amount of additional hardware alone will resolve them without genuine integration, unified command structures, and long-term munitions planning that currently does not exist.