Over the course of 2025, discussions within the Gulf Cooperation Council (GCC) on strengthening collective air and missile defence regained momentum. Two security incidents involving Qatar served as critical operational reference points: the 23 June Iranian missile attack on Al Udeid Air Base and Israel’s 9 September strike in Doha. The incidents did not alter the GCC’s strategic posture but tested existing air and missile defence arrangements.
Following the Doha raid, an emergency Arab-Islamic summit summit met in Doha on 14 to15 September, followed by a set of extraordinary meetings of the GCC Joint Defence Council, with the latest held in Kuwait on 25 November. These consultations culminated on 18 September, when defence ministers and senior officials from all six GCC states met in Doha to announce a package of collective defence measures. The measures focused on three tracks: enhancing intelligence exchanges through the GCC Unified Military Command; accelerating a joint early-warning system by linking national sensors into a shared operational picture; and improving readiness through real-time air situational data-sharing, with joint drills to follow.
At the political level, the principle that “the security of the GCC states is indivisible” was reiterated by GCC leaders and Secretary General Jasem Mohamed Albudaiwi, including at the 46th GCC Supreme Council session in Bahrain on 3 December 2025 and during the GCC–US strategic partnership meeting held on the sidelines of the UN General Assembly on 24 September. In this context, Albudaiwi confirmed ongoing discussions with the United States on a proposed “Joint Gulf Missile Defence Shield,” noting that significant technical issues remain unresolved. Gulf officials have also suggested that the process could lead to US participation in a large-scale joint exercise scheduled for early 2027.
Taken together, these developments point to a gradual recalibration of the GCC’s security architecture. What differentiates the current phase from earlier integration efforts is the convergence of repeated high-end operational stress tests with sustained political signalling at the GCC level.
From Political Solidarity to Operational Questions
Political cohesion has long underpinned GCC security efforts. Recent events, however, have sharpened attention on its operational implications. The June attack on Al Udeid and Israel’s September operation in Doha illustrated how multi-actor threats, diverse trajectories, and compressed timelines expose the limits of nationally segmented defences.
The central challenge facing the GCC is therefore not the absence of political consensus, but its translation into operational mechanisms. Recent defence consultations indicate growing agreement that cooperation must prioritise measurable outcomes, including shared early-warning capabilities, improved real-time data transmission among national command centres, and the expansion of joint air-defence drills designed to reflect complex, high-end threat environments.
This shift reflects a broader recognition that modern air and missile defence depends as much on information integration as on interceptor capacity. Sensor fusion, shared situational awareness, and clear coordination arrangements are essential when threats can traverse multiple airspaces within minutes. Given the Gulf’s dense airspace, short engagement distances, and proximity of critical infrastructure, response timelines are inherently compressed. Current discussions suggest the need for renewed efforts to embed such coordination more systematically at the GCC level.
Interoperability as the Core Challenge
Interoperability remains one of the most persistent obstacles to deeper GCC air and missile defence integration. Over the past decade, Gulf states have invested heavily in layered defence systems to counter ballistic missiles, cruise missiles, and unmanned aerial threats. These investments include high-end systems such as Patriot PAC-3 and THAAD for upper-tier defence, complemented by medium-range systems like NASAMS and Cheongung KM-SAM, as well as short-range air-defence assets. While these investments have strengthened national capabilities, they have also produced a heterogeneous mix of platforms with distinct architectures and command-and-control (C2) interfaces.
This diversity complicates the creation of a unified operational picture. Differences in data formats, sensor resolution, engagement envelopes, and software standards limit real-time sensor fusion, even where bilateral or host-nation arrangements provide partial enablers.
Recent episodes—from the June 23 attack on Al Udeid to Israel’s 9 September strike—reinforced these constraints, highlighting the importance of early warning, coordination, and response timelines. High-altitude and stand-off attack profiles, combined with compressed engagement timelines, place a premium on rapid data exchange and coordinated response. Without common data standards, interoperable software layers, and rehearsed procedures, even advanced systems risk operating in parallel rather than as a coherent whole.
Interoperability challenges also extend beyond hardware. Sustaining an integrated posture requires aligned doctrines, regular joint training, compatible rules of engagement, and clear procedures for tracking and engagement as threats move across national airspaces. Current discussions therefore prioritise compatibility at key functional nodes—early warning, data exchange, and situational awareness—rather than full system standardisation.
Command, Control, and Sustainability
Even where technical connectivity improves, effectiveness depends on command-and-control arrangements and sustainability. Collective defence raises sensitive questions regarding engagement authority and responsibility-sharing, particularly during fast-moving, multi-airspace incidents. In the GCC context, this has focused attention on how national command authorities interface with regional coordination bodies, including the role of the Unified Military Command as a facilitator rather than a centralised headquarters.
Sustainability further complicates the picture. Recent conflicts have demonstrated how quickly interceptor stockpiles can be depleted under sustained pressure, highlighting challenges related to resupply, prioritisation, and readiness disparities. High-end systems such as PAC-3 and THAAD require long lead times, specialised upkeep, and continuous training, making coordinated planning essential.
Joint exercises and institutionalised training cycles therefore play a critical role. Recent GCC exercises and command-post drills linked to the Joint Defence Council of the Arab League have increasingly emphasised air and missile defence scenarios, including information-sharing protocols and simulated cross-border threat tracking. In this context, the GCC Unified Military Command and associated technical bodies can serve as important enablers, promoting habitual cooperation while respecting national command prerogatives.
A Complementary Security Layer
GCC-level coordination unfolds within a dense ecosystem of bilateral and multilateral security arrangements. A more integrated GCC architecture is therefore best understood as complementary rather than substitutive. By aligning regional mechanisms with existing defence agreements and early-warning frameworks, Gulf states can reduce duplication, close coverage gaps, and enhance the effectiveness of national investments. Recent discussions emphasise practical capacity-building—such as data sharing and joint training—over the creation of rigid new structures, preserving flexibility while strengthening collective resilience.
Officials have consistently framed GCC integration efforts as reinforcing, rather than replacing, established security partnerships. This approach reflects both operational realities and institutional caution, recognising that national defence architectures remain deeply embedded in broader cooperative frameworks. External partnerships, particularly with the United States, continue to shape the operational environment, even as GCC-level coordination seeks to enhance regional ownership and resilience. In this fast-moving scenario, a more coherent GCC coordination layer may also support crisis management by reducing uncertainty and improving information exchange among member states.
