, , , , , , , , , , , , , , , , , , , , , , , The European Sky Shield Initiative (ESSI) is a project to build a ground-based integrated European

air defence Anti-aircraft warfare (AAW) is the counter to aerial warfare and includes "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It encompasses surface-based, subsurface (Submarine#Armament, submarine-lau ...

system which includes

anti-ballistic missile An anti-ballistic missile (ABM) is a surface-to-air missile designed to Missile defense, destroy in-flight ballistic missiles. They achieve this explosively (chemical or nuclear), or via hit-to-kill Kinetic projectile, kinetic vehicles, which ma ...

capability. 24 European states participate in the initiative. A related but separate proposal is European Sky Shield for Ukraine, which would deploy a European-led Integrated Air Protection Zone covering western Ukraine using NATO member combat air patrols.

Background

The initiative was originally proposed by the

Chancellor of Germany The chancellor of Germany, officially the federal chancellor of the Federal Republic of Germany, is the head of the federal Cabinet of Germany, government of Germany. The chancellor is the chief executive of the Federal Government of Germany, ...

Olaf Scholz Olaf Scholz (; born 14 June 1958) is a German politician who served as the Chancellor of Germany from 2021 to 2025. A member of the Social Democratic Party of Germany, Social Democratic Party (SPD), he previously served as Vice-Chancellor of Ge ...

in August 2022. The proposal was made during the 2022–2023 Russian strikes against Ukrainian infrastructure and amid increased concerns about the limited European capability to defend against such threats as the Russian

9K720 Iskander The 9K720 Iskander (; NATO reporting name SS-26 Stone) is a Russian mobile short-range ballistic missile system. It has a range of . It was intended to replace the OTR-21 Tochka in the Russian military by 2020. The Iskander has several differ ...

ballistic missile A ballistic missile is a type of missile that uses projectile motion to deliver warheads on a target. These weapons are powered only during relatively brief periods—most of the flight is unpowered. Short-range ballistic missiles (SRBM) typic ...

systems deployed in

Kaliningrad Kaliningrad,. known as Königsberg; ; . until 1946, is the largest city and administrative centre of Kaliningrad Oblast, an Enclave and exclave, exclave of Russia between Lithuania and Poland ( west of the bulk of Russia), located on the Prego ...

. In October 2022, fifteen European states (

Belgium Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeas ...

Bulgaria Bulgaria, officially the Republic of Bulgaria, is a country in Southeast Europe. It is situated on the eastern portion of the Balkans directly south of the Danube river and west of the Black Sea. Bulgaria is bordered by Greece and Turkey t ...

, the

Czech Republic The Czech Republic, also known as Czechia, and historically known as Bohemia, is a landlocked country in Central Europe. The country is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the south ...

Estonia Estonia, officially the Republic of Estonia, is a country in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the Baltic Sea across from Sweden, to the south by Latvia, and to the east by Ru ...

Finland Finland, officially the Republic of Finland, is a Nordic country in Northern Europe. It borders Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of Bothnia to the west and the Gulf of Finland to the south, ...

Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...

Hungary Hungary is a landlocked country in Central Europe. Spanning much of the Pannonian Basin, Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croatia and ...

Latvia Latvia, officially the Republic of Latvia, is a country in the Baltic region of Northern Europe. It is one of the three Baltic states, along with Estonia to the north and Lithuania to the south. It borders Russia to the east and Belarus to t ...

Lithuania Lithuania, officially the Republic of Lithuania, is a country in the Baltic region of Europe. It is one of three Baltic states and lies on the eastern shore of the Baltic Sea, bordered by Latvia to the north, Belarus to the east and south, P ...

, the

Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ...

Norway Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of the Kingdom of ...

Slovakia Slovakia, officially the Slovak Republic, is a landlocked country in Central Europe. It is bordered by Poland to the north, Ukraine to the east, Hungary to the south, Austria to the west, and the Czech Republic to the northwest. Slovakia's m ...

Slovenia Slovenia, officially the Republic of Slovenia, is a country in Central Europe. It borders Italy to the west, Austria to the north, Hungary to the northeast, Croatia to the south and southeast, and a short (46.6 km) coastline within the Adriati ...

Romania Romania is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern and Southeast Europe. It borders Ukraine to the north and east, Hungary to the west, Serbia to the southwest, Bulgaria to the south, Moldova to ...

, the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...

) signed a declaration to join the German-led initiative. It would involve joint procurement of the air defence systems. all founding states are members of

NATO The North Atlantic Treaty Organization (NATO ; , OTAN), also called the North Atlantic Alliance, is an intergovernmental organization, intergovernmental Transnationalism, transnational military alliance of 32 Member states of NATO, member s ...

, with Finland's accession into the alliance occurring in 2023. The initiative also aims to strengthen the

NATO Integrated Air Defence System The NATO Integrated Air Defense System (short: NATINADS) is a command and control network combining radars and other facilities spread throughout the NATO alliance's air defence forces. It formed in the mid-1950s and became operational in 1962 as ...

. In February 2024, the German government announced that Greece and Turkey would join the initiative. In February 2023,

Denmark Denmark is a Nordic countries, Nordic country in Northern Europe. It is the metropole and most populous constituent of the Kingdom of Denmark,, . also known as the Danish Realm, a constitutionally unitary state that includes the Autonomous a ...

and

Sweden Sweden, formally the Kingdom of Sweden, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. It borders Norway to the west and north, and Finland to the east. At , Sweden is the largest Nordic count ...

joined the project. In July 2023,

neutral Neutral or neutrality may refer to: Mathematics and natural science Biology * Neutral organisms, in ecology, those that obey the unified neutral theory of biodiversity Chemistry and physics * Neutralization (chemistry), a chemical reaction in ...

states

Austria Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Aust ...

and

Switzerland Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland ...

signed the declaration to join the initiative, the latter passed the application with supplement in October 2024, raising questions about the future and practicalities of their policy of neutrality.

France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...

has been challenging the initiative, citing too much reliance in current plans on non-European equipment and technology. It was suggested that the French government is dissatisfied that the French-Italian SAMP-T system is excluded from ESSI. In June 2023, France made a counter-proposal and has been calling for other countries to examine the alternatives. several major European states, namely France,

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...

Italy Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...

, and

Spain Spain, or the Kingdom of Spain, is a country in Southern Europe, Southern and Western Europe with territories in North Africa. Featuring the Punta de Tarifa, southernmost point of continental Europe, it is the largest country in Southern Eur ...

did not make a decision to join the ESSI. In April 2024, PM

Donald Tusk Donald Franciszek Tusk (born 22 April 1957) is a Polish politician and historian who has served as the prime minister of Poland since 2023, previously holding the office from 2007 to 2014. Tusk served as the president of the European Council (20 ...

expressed that Poland plans to join a project to develop a European-wide air defense system to deter potential drone and missile attacks. In February 2025,

Albania Albania ( ; or ), officially the Republic of Albania (), is a country in Southeast Europe. It is located in the Balkans, on the Adriatic Sea, Adriatic and Ionian Seas within the Mediterranean Sea, and shares land borders with Montenegro to ...

and

Portugal Portugal, officially the Portuguese Republic, is a country on the Iberian Peninsula in Southwestern Europe. Featuring Cabo da Roca, the westernmost point in continental Europe, Portugal borders Spain to its north and east, with which it share ...

officially joined the initiative. Germany’s announced procurement of the Arrow 4 missile system in May 2025 is considered a critical long-term element of its contribution to the European Sky Shield Initiative. Arrow 4, which is currently under development, will provide a high-altitude defense layer that complements existing systems like IRIS-T SLM and Patriot.

Capability

The ESSI will use multi-layered defence, with the following systems planned: * Short range: Skyranger 30 * Medium range: primarily IRIS-T SLM * Long range:

MIM-104 Patriot The MIM-104 Patriot is a mobile interceptor missile surface-to-air missile (SAM) system, the primary such system used by the United States Army and several allied states. It is manufactured by the U.S. defense contractor Raytheon and derives it ...

* Very long range ( exoatmospheric):

Arrow 3 The Arrow 3 or ''Hetz 3'' (, or ) is an exoatmospheric hypersonic anti-ballistic missile, jointly funded, developed and produced by Israel and the United States. Undertaken by Israel Aerospace Industries (IAI) and Boeing, it is overseen by the ...

In December 2022, the German Chancellor expressed a hope that the system will be developed in the next five years. In June 2023, the German

Bundestag The Bundestag (, "Federal Diet (assembly), Diet") is the lower house of the Germany, German Federalism in Germany, federal parliament. It is the only constitutional body of the federation directly elected by the German people. The Bundestag wa ...

authorized nearly €4 billion for the acquisition of Arrow 3 anti-ballistic missile system from

Israel Israel, officially the State of Israel, is a country in West Asia. It Borders of Israel, shares borders with Lebanon to the north, Syria to the north-east, Jordan to the east, Egypt to the south-west, and the Mediterranean Sea to the west. Isr ...

. The contract was signed in November 2023. In February 2025, the construction of Arrow 3 started, with the intent to establish the initial capability in 2025 and full operational capability by 2030. IRIS-T SLM launcher ILA-2022.jpg, Diehl IRIS-T SLM launcher IRIS-T SLM radar unit TRML-4D ILA-2022.jpg,

Hensoldt Hensoldt AG ''(HENSOLDT)'' is a multinational corporation headquartered in Germany which focuses on sensor technologies for protection and surveillance missions in the Military, defence, security and aerospace sectors. The main product areas are r ...

TRML-4D radar for IRIS-T SLM Maintenance check on a Patriot missile.jpg,

launcher with PAC-3 MSE missiles Raytheons GaN-based AESA Radar Prototype.jpg,

Raytheon Raytheon is a business unit of RTX Corporation and is a major U.S. defense contractor and industrial corporation with manufacturing concentrations in weapons and military and commercial electronics. Founded in 1922, it merged in 2020 with Unite ...

LTAMDS radar for MIM-104 Patriot Arrow2launcher.jpg, IAI

launcher ELM-2080-2080S 1 825x515 0.jpg,

EL/M-2080 Green Pine The EL/M-2080 Green Pine (, ) is an Israeli ground-based missile defense radar produced by Elta Systems, a subsidiary of Israel Aerospace Industries, to operate mainly with the Arrow theater missile defense system of Israel, which is jointly ...

radar for Arrow 3

References

{{Reflist Anti-ballistic missiles Air defence radar networks Military in Europe Missile defense

Background

Capability

See also

References