Greece Signs $3.5bn 'Achilles Shield' Air Defence Deal With Israel

Intergovernmental agreement builds Greece a multi-layered air and missile defence network, as Athens accelerates military modernisation amid tensions with Turkey

Published August 31, 2026

Greece and Israel signed an intergovernmental agreement in Tel Aviv on Monday, August 31, 2026. The programme, known in Greece as Achilles Shield (Aspida tou Achillea), will build Greece a multi-layered air and missile defence network. Its total value is €3.035 billion, or about $3.5 billion, according to Greece's Ministry of National Defence, a figure reported independently by Politico Europe and GreekReporter.

The deal arrives as Athens accelerates a long-running military modernisation drive, against a backdrop of persistent tension with Turkey. Israel's Ministry of Defense called it the largest defence-export deal in the history of Israeli-Greek relations, and among the largest in Israel's own export history. That is the ministry's own characterisation, not an independently audited ranking of every contract Israel has signed.

The agreement was signed at the ministry's Tel Aviv headquarters by its director general, Maj. Gen. (Res.) Amir Baram, and by Maj. Gen. Ioannis Bouras, head of Greece's General Directorate for Defence Investments and Armaments. Reuters independently confirmed the signing, the roughly €3 billion value and the systems involved. A separate €26 million ($30 million) contract for Rafael's Drone Dome counter-drone system was signed the same day. Israeli Defence Minister Israel Katz, who did not sign the agreement himself, said afterward that the two countries “share common strategic interests and face shared regional challenges,” according to the Jewish Telegraphic Agency.

What the Achilles Shield Programme Includes

The network combines several Israeli-made systems under one command structure. Its main components are:

● David's Sling (Rafael Advanced Defense Systems): mid-to-long-range interceptor for ballistic missiles, heavy rockets and cruise missiles

● SPYDER (Rafael): shorter-range defence against aircraft, drones and precision-guided munitions

● Barak MX (Israel Aerospace Industries): covers a broad band of aerial threats

● MMR multi-mission radars, built by IAI subsidiary ELTA Systems, for air surveillance

● A new command-and-control centre, built by Rafael, to fuse the separate layers into a single network

● A linked, separately contracted Drone Dome system, worth €26 million, for counter-drone protection of strategic sites

Israel's Ministry of Defense describes this as the first time it has delivered a complete, integrated array of this kind to a single foreign buyer. That is a claim about Israel's own export history. It does not mean Greece has never operated an air-defence system; Athens has used Patriot batteries for years, and the new network is meant to work alongside them rather than replace them outright.

Greece's defence ministry says nineteen Greek companies are already taking part, with domestic industrial work worth more than €750 million, above 25 percent of the contract's value. Politico, UPI and GreekReporter all cite the same figures. An earlier, pre-signing report had put the number at twelve companies and roughly $811 million; the higher figures are the ones both governments now attach to the signed deal.

Defence Minister Nikos Dendias briefed Greek journalists on July 24. He said the package “slightly exceeds €3 billion” and would be “operational in 35 months,” delivered in stages, according to a transcript published by the Greek Ministry of National Defence. That transcript treats source-code access as a general procurement principle, not a confirmed term of this specific deal. It does not publish the final contract text.

An approximately €3 billion deal: Israel and Greece have signed the massive "Achilles Shield" agreement, under which Israel will build Greece a multi-layered air defense array based on Israeli systems architecture.

Read More: https://t.co/xXTK35zycj pic.twitter.com/QCmZuJcBeJ
— Ministry of Defense (@Israel_MOD) August 31, 2026

Why Greece Is Building a New Air-Defence Network

The programme sits inside Agenda 2030, Greece's wider military modernisation drive. Prime Minister Kyriakos Mitsotakis has called it the most sweeping transformation of the armed forces in the country's history.

Greece's core defence spending reached 3.65 percent of GDP in 2026, the fifth-highest share among NATO members and above the alliance's new 3.5-percent core-defence target, according to NATO data reported by Reuters in July 2026. That level of spending reflects, above all, Greece's long dispute with Turkey over Aegean and eastern Mediterranean maritime boundaries, continental-shelf claims and airspace.

The Turkey Factor

Neither government's official statement names Turkey as the system's target. Al Jazeera reported that Ankara had not issued a specific reaction to the signing itself at the time of publication.

Turkey's Defence Ministry had, however, addressed the wider Greek-Israeli relationship three weeks earlier. In an August 10 written response to a parliamentary question, Defence Minister Yaşar Güler said Turkey continuously monitors Greek military activity in the Aegean and eastern Mediterranean, and that contingency planning covers scenarios ranging from crisis to war. That letter concerned the broader relationship, not the Achilles Shield contract itself, and should be read as context rather than a direct reaction to Monday's signing.

Turkey is separately building its own layered system, Steel Dome (Celik Kubbe), combining domestic systems such as Hisar and Korkut with the newly inducted, long-range Siper-1 interceptor from manufacturer Aselsan. Ankara has invested heavily in expanding Steel Dome's production capacity through 2026, including a dedicated factory Turkish officials call among the largest of its kind in Europe. The two countries' parallel pursuit of layered air-defence systems points to a broader regional arms buildup, not a direct response to each other's programme.

Israel's Defence-Export Boom

The Greek deal lands amid a wider export surge. Israel's Ministry of Defense reported $19.2 billion in defence exports for 2025, up nearly 30 percent from 2024 and a fifth consecutive annual record, according to SIBAT figures cited by the Times of Israel. Missile, rocket and air-defence systems made up the largest single category, 29 percent, and government-to-government deals, the same model used for Achilles Shield, reached a record $10 billion.

Officials say the industry has kept supplying foreign buyers while operating under wartime, emergency-mode production since October 2023. They have also acknowledged real capacity constraints and the need for continued investment in production lines. Achilles Shield's 35-month, staged build-out reflects that: a multi-year commitment, not an immediate delivery of finished weapons.

Greece becomes the second export customer for David's Sling after Finland, which bought the system in 2023 for roughly $345 million. Finland's broader defence relationship with Israel has separately drawn domestic criticism in 2026, after Finnish media reported a quiet extension of a cooperation memorandum through 2034, which opposition leader Sofia Virta called a “historic shame,” according to Helsinki Times. That controversy concerns the memorandum's secrecy, not the original David's Sling purchase, and it is a separate episode from Greece's agreement.

Why the Deal Matters for Israel-Greece Relations

Achilles Shield sits awkwardly alongside Greek diplomacy on the Palestinian question. Athens backs a two-state solution and has voiced concern over the humanitarian toll of Israel's campaign in Gaza, a conflict that has drawn international criticism and allegations before international bodies that Israel disputes.

Greek officials treat defence procurement and Gaza-related diplomacy as separate tracks. Their calculation is that Israeli systems offer capabilities and a combat record Athens judges hard to match elsewhere. Its statements on Gaza, by contrast, represent a distinct diplomatic position aimed at international forums. Whether that separation holds up domestically is a different question, one that opposition and government voices in Greece answer very differently.

The agreement also deepens an existing Greece-Cyprus-Israel security relationship built up over roughly fifteen years, and adds Greece to a short list of European states, alongside Finland, buying Israeli-made national air-defence technology. Other European governments, including Spain, have cancelled separate defence contracts with Israel over Gaza in the same period.

Domestic Criticism in Greece

Criticism of the deal comes chiefly from the political opposition and independent commentators, not from demonstrated majority public opinion, and should be read that way. Left-wing Syriza figures and critics such as former deputy defence minister Konstantinos Isychos argue that deepening military ties with Israel sits uneasily with Greek sympathy for Palestinians. They also say large-scale defence spending competes with other funding priorities, according to Middle East Eye.

The governing coalition has not changed course in response. It treats Achilles Shield as a flagship achievement of Agenda 2030, not a liability.

What Remains Unclear

The public record does not disclose the number of batteries, launchers, interceptors or radars involved. Nor does it include a detailed payment schedule or the final contract language on software and source-code rights. Those specifics may emerge as the programme moves from signing to implementation, but they are not yet public.

Reported figures for the programme's overall value ranged from about €3 billion to as high as €4.2 billion before the signing, depending on which related purchases were folded in. €3.035 billion is the figure both governments now attach specifically to this agreement. Achilles Shield is also smaller than Greece's total modernisation programme, reported at roughly €28 billion through 2036, which separately includes up to 40 F-35 jets and new frigates.

The core facts of the signing are well established. It is an intergovernmental agreement worth €3.035 billion, signed in Tel Aviv on August 31, 2026. It combines David's Sling, Barak MX, SPYDER and a new command-and-control system, alongside a separate €26 million Drone Dome contract and nineteen Greek companies engaged in a stated 35-month build-out. What remains open is execution. That includes whether the industrial-participation and source-code commitments described by officials appear in that form in the final contract, and how the deal plays into Greek politics and the wider, still-evolving security balance between Athens, Jerusalem and Ankara.