EMET NEWS PRESS

Situation Assessment I

Reuters reported on 16 March 2026 that the responsible Greek parliamentary committee had approved the programme. The measures included the approximately €3 billion air-defence core of Achilles Shield and other modernization projects, among them the conversion of 38 F-16 Block 50 aircraft. The decisions still required final approval by KYSEA.

On 23 March, according to the Greek Ministry of National Defence, KYSEA confirmed the principles governing the national drone, air and missile defence architecture and its command arrangements. Defence Minister Nikos Dendias stated after the meeting that the council had also addressed the modernization of the four MEKO frigates. The further meeting expected on 23 July concerns final system selection, contractual authorizations and additional procurement programmes.

Rafael’s SPYDER All-in-One is intended for the short-range layer. The system is expected to assume functions currently performed by the OSA-AK and TOR-M1 batteries. Radar, electro-optical sensors and battle management are combined with the launcher on a mobile platform.

The medium- and extended-range layer is to be formed by Israel Aerospace Industries’ BARAK MX. The system uses several interceptor types with different engagement ranges and is initially intended to supplement the Hawk batteries. Partial replacement at a later stage is envisaged.

David’s Sling is planned for the interception of advanced cruise missiles, heavy rockets and selected ballistic missiles. It remains open whether Greece will receive the standard Israeli configuration or an adapted variant. The interceptor fit, sensor package and number of fire units are not known.

The procurement is expected to be agreed between the Greek General Directorate for Defence Investments and Armaments and the Israeli defence cooperation directorate SIBAT. Kathimerini reported that Athens had secured a minimum participation level of 25 percent for the Greek defence industry. The shares allocated to production, maintenance or software have not been published.

Situation Assessment II

Achilles Shield will transition Greece from separately operated air-defence systems to a centrally commanded, layered architecture. The selection reflects the threat patterns observed in Ukraine and the Middle East, where drones and missiles are employed in coordinated attacks to overload sensors and deplete interceptor stocks.

SPYDER, BARAK MX and David’s Sling cover different altitude and range bands. Manufacturer figures do not provide a reliable measure of actual area coverage. Terrain, radar horizon and battery deployment determine the usable engagement envelope, while endurance depends on available ammunition.

The integrated defence network describes the intended end state. A completed connection between the three Israeli systems and Greece’s American and French platforms has not been demonstrated. Technical clearances, cybersecurity certification and access rights to protected interfaces are likewise not documented.

Delivery will take several years. Greece must continue operating existing batteries while training personnel for the new systems. During this transition, maintenance capacity and spare parts will remain tied to several technically separate system families.

The principal analytical divide is therefore between a national procurement decision and Allied operational capability. Greek sensors and effectors will make their full contribution to the NATO Integrated Air and Missile Defence System only after technical certification, procedural validation and formal assignment.

Layered Engagement Architecture

SPYDER All-in-One is intended to provide a mobile short-range layer for the defence of airfields, islands and military infrastructure. The system can engage crewed aircraft, drones and low-flying precision-guided weapons.

Against massed drone attacks, the use of guided interceptors offers limited endurance. High firing rates would rapidly reduce stocks and create an unfavourable cost ratio. Achilles Shield therefore requires supplementary electronic or gun-based defences against this threat category.

Protection of larger areas is assigned to BARAK MX. The system family can use graduated interceptor types against aircraft and cruise missiles. Longer-range variants are also intended to engage selected ballistic targets.

The upper layer of the planned architecture is to be covered by David’s Sling. The system is designed to counter fast and manoeuvring missiles. Its deployment extends the Greek engagement envelope into the upper atmosphere. It does not provide exoatmospheric missile defence.

Within the command architecture, target tracks must be fused, assessed and assigned to a suitable fire unit. Incorrect classification or delayed transmission could impair several defensive layers at the same time. Resilient data paths and decentralized fallback procedures are therefore decisive for combat effectiveness.

Integration of the Air Forces

With their AESA radars, the F-16 Vipers can contribute to long-range detection and tracking of airborne targets. The use of their sensor data by Israeli ground-based interceptors requires certified data links and approved interfaces.

The F-35A can detect targets through passive and active sensors and distribute data within authorized networks. Weapons-quality data for a nationally controlled system containing Israeli components remains subject to US approval. Direct fire-control cueing from F-35 sensors to BARAK MX or David’s Sling has not been confirmed.

An initial integration stage is likely to consist of a common air picture. Connected systems would exchange target tracks while retaining fire-control functions within their respective architectures. A more advanced sensor-to-effector connection would be technically and legally more demanding.

For Allied operations, Greek air-surveillance data must be transmitted to NATO Air Command with minimal delay. In a crisis, national fighters, ground-based air defences and Allied aircraft would require coordinated rules of engagement. This reduces the risk of duplicate engagements and incorrect identification.

Integration of the Naval Forces

The FDI HN frigates possess long-range air-surveillance capability through the Sea Fire radar. The SETIS combat management system processes the sensor data and controls the ships’ Aster missiles.

Maritime target tracks could be incorporated into the national air picture where suitable data links are available. Direct control of Israeli interceptors by the frigates’ sensors has not been demonstrated.

Connecting French, American and Israeli systems requires harmonized data formats and common security standards. Protected interfaces may restrict exchanges to predefined information levels.

Within NATO, the Greek frigates could reinforce air defence over the Aegean and the eastern Mediterranean. This would be relevant to the protection of maritime reinforcement forces and logistics convoys. A common air picture with the land-based systems would provide the technical basis.

Patriot Batteries

The Greek Patriot batteries will remain part of the national air and missile defence architecture. Their radars and command posts can contribute target tracks to the common operational picture. It remains open whether Patriot sensors will eventually be able to assign targets directly to Israeli interceptor systems.

Coordinated engagement control is initially more likely. The systems would exchange detected target tracks while retaining their own engagement procedures. Engagement authorization and missile guidance would remain within the respective system architecture.

Together, Patriot and David’s Sling expand the available interception options. Clear engagement rules are required to prevent several fire units from engaging the same target simultaneously or leaving a target unengaged because of unclear responsibility.

The Patriot batteries already operated within NATO structures could serve as a technical and procedural bridge to NATINAMDS. Their command posts provide an established connection to Allied reporting channels. Whether Achilles Shield can use this connection directly has not been published.

Strategic Significance for NATO

If successfully integrated, Achilles Shield will strengthen NATO’s southeastern flank. Greece lies at the junction of the Balkans, the Black Sea and the eastern Mediterranean. From Greek territory, the Alliance supports air, naval and logistics operations in several strategic directions.

The ports of Alexandroupolis, Thessaloniki and Souda Bay, together with Greek airfields, are important for troop movements and sustainment. In a crisis, they would constitute potential targets for cruise missiles, ballistic systems and unmanned aircraft. Achilles Shield could reinforce the protection of this infrastructure and secure the reception of Allied forces.

NATO IAMD protects Alliance territory, populations and forces during peace, crisis and conflict. Greece can provide additional sensors, ground-based effectors and mobile defence units. National control remains in place unless Athens assigns capabilities to a specific operation or readiness task.

An operational Greek architecture could reinforce air defence between the central Mediterranean, the Balkans and NATO’s Turkish southeastern sector. It would also improve surveillance of approach routes from the Middle East and North Africa. The programme therefore supports NATO’s 360-degree approach.

The deployment of rotating Allied air-defence forces could also be facilitated. Joint exercises with Patriot, SAMP/T or other NATO systems could standardize target allocation and engagement coordination. The required certification has not been confirmed.

The acquisition of Israeli systems increases technological diversity within the Alliance. Different system families can improve resilience against individual supply or ammunition constraints. Proprietary software, national encryption and restricted interfaces also increase the integration burden.

If Greece develops sufficient national defence capacity, fewer additional systems from other Allies may be required in a crisis. Deployable batteries could then be used at other priority locations. This relief effect depends on adequate Greek interceptor stocks and a robust national command structure.

The programme will acquire a direct role in NATO’s territorial ballistic missile defence only after separate technical and operational integration. David’s Sling and BARAK MX initially expand Greece’s national capability against ballistic threats.

The Greek-Turkish rivalry remains a political constraint. Both states belong to NATO but pursue partly conflicting security interests in the eastern Mediterranean. Deployment focused on the protection of Allied infrastructure and common operational areas would increase the programme’s Alliance value.

Command Software and National Control

According to Greek reporting, the command node is to be developed as a national C4I system. Greek software, electronics and defence companies are expected to participate in its development and integration. The centre is intended to fuse sensor information, assess threats and assign suitable defensive systems.

Kathimerini reports that the central software is to remain under Greek ownership and operate without Israeli intervention. National control therefore covers system configuration, target prioritization and the management of connected sensors.

The scope of the actual access rights remains unresolved. National C4I sovereignty does not imply access to the source code of the individual Israeli systems. Manufacturers may continue to protect core functions, encryption and missile logic.

Greek operators require at least the ability to modify threat libraries and operational parameters without prolonged external authorization. If essential changes remain dependent on Israeli manufacturers, operational dependence will persist despite the Greek command node.

NATO connectivity additionally requires standardized data transfer to Allied Air Command and to national command posts of other Alliance members. Separate national and Allied operating modes could be provided for this purpose. Their specific configuration has not been published.

Automated processes can rank target tracks and propose suitable defensive assets. Engagement authorization must remain within an established military chain of command. Manual procedures and decentralized command options are required in the event of system failure.

Replacement of Russian Systems

Greece continues to operate OSA-AK, TOR-M1 and S-300 systems. Spare-parts supply and technical support have been available only to a limited extent since relations with Russia were severed.

SPYDER is intended primarily to replace OSA-AK and TOR-M1. BARAK MX and David’s Sling will assume parts of the engagement envelope currently covered by Hawk, Patriot and S-300. The new systems nevertheless differ from the legacy equipment in range, radar architecture and operating procedures.

The Russian batteries can be withdrawn only after new fire units become available and crews have been trained. Adequate interceptor stocks must also be established. Greece will remain dependent on a mixed structure until then.

Parallel operation increases the logistics burden and complicates common engagement control. Russian systems use separate data formats and command procedures. Their integration into the new architecture is therefore likely to remain limited.

For NATO, the replacement of Russian systems reduces technical and security risks. It lowers dependence on Russian spare-parts supply and supports gradual alignment with Allied procedures. The Israeli replacement systems will still require separate certification.

Ammunition Situation and Endurance

The combat value of Achilles Shield depends on the number of available interceptors. Launchers with limited reload stocks provide only a restricted initial defence capability.

The planned procurement value does not disclose the quantity of ammunition. It remains unclear what share is allocated to interceptors, sensors and infrastructure. Expenditure on training and technical support has also not been published.

Greece must be capable of defeating several waves of a coordinated attack. This requires protected storage facilities and mobile reload vehicles. Secure resupply is equally necessary for prolonged operations.

Israeli production must simultaneously cover the requirements of the Israel Defense Forces and additional export customers. Delivery periods and replenishment after combat use therefore constitute a separate risk factor.

Greek ammunition stocks are directly relevant to NATO. A battery assigned to the Alliance contributes to common air defence only while interceptors and reload capability remain available.

Industrial and Strategic Dimension

The minimum 25-percent participation of Greek industry reported by Kathimerini could improve security of supply. Its effect depends on whether it includes maintenance, spare-parts production or software support.

If the national share is confined to construction or final assembly, dependence on Israeli manufacturers will remain largely intact. Technical documentation and test equipment are required for military availability, together with sufficient trained personnel.

Greek and Israeli defence-industry reporting identifies Hellenic Aerospace Industry, Intracom Defense and other companies as possible participants. Reported work packages include the production of housings, wiring and launcher shells, as well as system-integration and command-centre support. The final industrial division of labour has not been published.

Intracom Defense was acquired by Israel Aerospace Industries in 2023 and has since operated as an IAI subsidiary. Where work awarded to this company is credited toward the required 25-percent industrial participation, part of the added value remains under Israeli corporate control. The national share would therefore strengthen Greek manufacturing and integration capacity while reducing external dependence only to a limited extent.

For Israel, the contract would constitute a major export success. The combined introduction of several system families would strengthen the position of Israeli manufacturers in the European air and missile defence market.

Greece will retain its American and French platforms. The new architecture must connect Patriot, F-35A and F-16 Viper with the FDI HN frigates. The programme therefore remains dependent on technical approvals from several supplier states.

Within NATO, supplier diversity could provide additional interception options and broader ammunition sources. Missing interfaces, by contrast, would produce a technically isolated national architecture. Its strategic value will consequently depend on availability under coordinated Allied command.

Intelligence Assessment

The expected KYSEA decision should be assessed as a binding transition into procurement. It confirms neither a signed overall contract nor an operational defence architecture.

The scope of the contract and the planned battery structure will be central to further assessment. Unit numbers, interceptor variants and delivery schedules will indicate whether Greece intends to establish broad territorial coverage or protect selected areas. The degree of integration must be assessed through the data paths actually released: a common air picture represents a lower level of networking than direct linkage between external sensors and Israeli effectors.

The same applies to Greek control over software and data. Only contractually secured access rights to interfaces, threat libraries and system updates would provide a reliable basis for assessment. Political statements on national control are insufficient. The volume, storage and replenishment of interceptor stocks will simultaneously determine endurance against multiple and saturation attacks.

For NATO, the principal indicator will be whether Achilles Shield is integrated into NATINAMDS and assigned to Allied readiness or operational tasks. Relevant signs would include certification exercises, connection to NATO Air Command and jointly tested engagement procedures.

Full integration would strengthen protection of NATO’s southeastern flank, secure operational hubs and release deployable air-defence forces from other Allies for use elsewhere. If the architecture remains nationally controlled and technically isolated by supplier restrictions, its Alliance contribution will be limited to a stronger Greek air picture and protection of national infrastructure.

Glossary

Achilles Shield
Greek programme to establish a networked air, drone and missile defence architecture.

AESA Radar
Radar with electronically controlled beam steering for the simultaneous detection and tracking of multiple targets.

BARAK MX
Modular air and missile defence family produced by Israel Aerospace Industries.

David’s Sling
Israeli defence system designed to engage heavy rockets, cruise missiles and selected ballistic missiles.

FDI HN
French FDI-class frigates configured for the Hellenic Navy.

IAMD Rotation Model
NATO procedure for the temporary deployment of Allied air-defence systems, sensors and combat aircraft to prioritized Alliance regions.

KYSEA
Greek Government Council for Foreign Affairs and Defence.

NATINAMDS
Network of national and Allied sensors, command facilities and weapon systems supporting NATO integrated air and missile defence.

NATO IAMD
Permanent NATO mission to protect Alliance territory, populations and armed forces against air and missile threats.

SACEUR
Supreme Allied Commander Europe and military authority responsible for NATINAMDS.

SIBAT
Directorate of the Israeli Ministry of Defence responsible for international defence cooperation.

SPYDER All-in-One
Mobile Rafael air-defence configuration combining sensors, command functions and a launcher on one platform.

Persons Register

Nikos Dendias
Greek Minister of National Defence and the responsible cabinet member for Achilles Shield.

Kyriakos Mitsotakis
Prime Minister of Greece and chairman of KYSEA.

References

Reuters
Greece approves purchase of air defence system, upgrade of F-16 jets
16 March 2026
reuters.com/business/aerospace-defense/greece-approves-purchase-air-defence-system-upgrade-f-16-jets-2026-03-16

Reuters
Greece in talks to buy anti-aircraft, artillery systems from Israel
14 November 2025
reuters.com/business/aerospace-defense/greece-talks-buy-anti-aircraft-artillery-systems-israel-2025-11-14

Reuters
Greece, Israel and Cyprus to step up joint exercises in eastern Mediterranean
29 December 2025
reuters.com/business/aerospace-defense/greece-israel-cyprus-step-up-joint-exercises-eastern-mediterranean-2025-12-29

Reuters
Greece to spend more than 25 bln euros in arms procurements by 2036
12 March 2025
reuters.com/business/aerospace-defense/greece-spend-more-than-25-bln-euros-arms-procurements-by-2036-2025-03-12

Reuters
Greece to spend 25 billion euros as part of multi-year defence plan
2 April 2025
reuters.com/business/aerospace-defense/greece-spend-25-billion-euros-part-multi-year-defence-plan-2025-04-02

Kathimerini
Greece set to approve €3 billion Achilles’ Shield defense program
21 July 2026
ekathimerini.com/politics/foreign-policy/1310171/greece-set-to-approve-e3-billion-achilles-shield-defense-program

Kathimerini
Achilles’ Shield ushers new air defense era
22 July 2026
ekathimerini.com/politics/foreign-policy/1310218/achilles-shield-ushers-new-air-defense-era

Kathimerini
Greece moves closer to €3 billion Israeli air defense deal
29 June 2026
ekathimerini.com/politics/foreign-policy/1308091/greece-moves-closer-to-3-billion-israeli-air-defense-deal

Kathimerini
Greece advances Achilles Shield with key steps planned for 2026
2 January 2026
ekathimerini.com/politics/foreign-policy/1291360/greece-advances-achilles-shield-with-key-steps-planned-for-2026

NATO
NATO Integrated Air and Missile Defence
13 February 2025
nato.int/en/what-we-do/deterrence-and-defence/nato-integrated-air-and-missile-defence

NATO
NATO Integrated Air and Missile Defence Policy
13 February 2025
nato.int/en/about-us/official-texts-and-resources/official-texts/2025/02/13/nato-integrated-air-and-missile-defence-policy

NATO
Ballistic missile defence
6 March 2026
nato.int/en/what-we-do/deterrence-and-defence/ballistic-missile-defence

NATO Allied Command Transformation
Strengthening NATO’s Shield: The Integrated Air and Missile Defence Centre of Excellence
8 September 2025
act.nato.int/article/iamd-coe-2025