Operation Sea Guardian was launched as a
maritime security operation by the
North Atlantic Treaty Organization
The North Atlantic Treaty Organization (NATO ; , OTAN), also called the North Atlantic Alliance, is an intergovernmental transnational military alliance of 32 member states—30 European and 2 North American. Established in the aftermat ...
(NATO) during the
Warsaw Summit in July 2016, aiming to expand NATO's role within the
Mediterranean Sea
The Mediterranean Sea ( ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean basin and almost completely enclosed by land: on the east by the Levant in West Asia, on the north by Anatolia in West Asia and Southern Eur ...
.
Operation Sea Guardian took over from and transformed the role of
Operation Active Endeavour
Operation Active Endeavour was a Navy, maritime operation of the North Atlantic Treaty Organization. It operated in the Mediterranean Sea and was designed to prevent the movement of terrorists or weapons of mass destruction. It had collateral ben ...
, with its counter-terrorism mission being modified to encompass a considerably broader non-
Article 5 maritime security operation.
Command
Operation Sea Guardian is led by the
Allied Maritime Command
The Allied Maritime Command (MARCOM) is the central command of all NATO maritime forces and the Commander MARCOM is the prime maritime advisor to the Alliance. When directed by the Supreme Allied Commander Europe (SACEUR), it provides the core ...
(MARCOM), which is headquartered in
Northwood, United Kingdom.
MARCOM serves as the hub of maritime security information sharing in this region for NATO, creating a comprehensive picture of day to day maritime activities in the Mediterranean which is sustained by the information provided through Operation Sea Guardian.
The operation is supported by active, standby, or associated provision from Allied nations, as requested by NATO. This can lead to varying numbers of ships, aircraft, personnel, and operation centres as nations partake in different activities.
Operation Sea Guardian additionally has access to the assets that compose the NATO
Standing Naval Forces – including ships, submarines, and maritime patrol aircraft.
Operation Sea Guardian acts as a standing
maritime security operation (MSO), functioning within the framework of the
Allied Maritime Strategy (AMS), which is a strategic framework assigned to NATO forces in the name of maritime defence and security operations, promoting NATO's interests and values in the maritime domain.
Operation Sea Guardian represents the operationalisation of the fourth task of the AMS, and therefore is designed to ensure maritime protection through the implementation of a full regime of maritime security operations.
Mission
Operation Sea Guardian encompasses many functions that contribute to NATO's role in the
maritime security domain in the Mediterranean.
Its three fundamental missions are to:
# Provide the highest degree of maritime situational awareness
# Counter terrorism and human trafficking
# Contribute to regional capacity building
The overarching purpose of the operation is to ensure that the Mediterranean and the Southern European border remains safe and protected.
Jens Stoltenberg
Jens Stoltenberg (; born 16 March 1959) is a Norwegian politician from the Labour Party. Since 2025, he has been the Minister of Finance in the Støre Cabinet. He has previously been the prime minister of Norway and secretary general of NATO.
...
, Secretary General of NATO, stated that "to protect our territory, we must be willing to project stability beyond our borders. If our neighbours are more stable, we are more secure".
Tasks
To ensure and maintain maritime security in the Mediterranean, Operation Sea Guardian provides crisis response and management alongside logistical support and surveillance for the
European Union
The European Union (EU) is a supranational union, supranational political union, political and economic union of Member state of the European Union, member states that are Geography of the European Union, located primarily in Europe. The u ...
(EU).
Through doing so, it aims to promote dialogue and cooperation between NATO and the EU through the enhancement of collaborate security and exchange of information.
This tactical and operational cooperation between NATO and the EU within the maritime security sphere embodies NATO’s comprehensive approach to maritime security.
As stated by the
Allied Maritime Command
The Allied Maritime Command (MARCOM) is the central command of all NATO maritime forces and the Commander MARCOM is the prime maritime advisor to the Alliance. When directed by the Supreme Allied Commander Europe (SACEUR), it provides the core ...
, Operation Sea Guardian is "aimed at working with Mediterranean stakeholders to deter and counter terrorism and mitigate the risk of other threats to security".
Another key function of Operation Sea Guardian is the application of NATO's Counter-Terrorism Policy Guidelines. NATO considers maritime terrorism in the Mediterranean to pose a direct threat to the security of citizens in both NATO and EU countries, as well as to international stability and prosperity. This regime aims to combat terrorism and the proliferation of weapons of mass destruction by conducting checks on vessels suspected of being connected to terrorist organisations or illegally carrying arms,
and by promoting a shared awareness of the terrorism threat level.
The responsibilities of Operation Sea Guardian also include the safeguarding of
freedom of navigation
Freedom of navigation (FON) is a principle of law of the sea that ships flying the flag of any sovereign state shall not suffer interference from other states when in international waters, apart from the exceptions provided for in international ...
and protection of critical infrastructure in the maritime environment.
The expansion of NATO maritime engagement within the Mediterranean has been seen as imperative to uphold freedom of navigation and protect the
blue economy and
shipping industry
Maritime transport (or ocean transport) or more generally waterborne transport, is the transport of people (passengers or goods (cargo) via waterways. Freight transport by watercraft has been widely used throughout recorded history, as it provi ...
from illegal activities.
Additionally, Operation Sea Guardian aims to prevent loss of life at sea by disrupting human trafficking networks, drug smuggling rings, and deterring terrorism.
Combatting these issues allows for the reduction of the subsequent instability, insecurity, and threat of acts of terror that
mass migration
Mass migration refers to the migration of large groups of people from one geographical area to another. Mass migration is distinguished from individual or small-scale migration; and also from seasonal migration, which may occur on a regular basi ...
may pose.
This helps achieve NATO's goal to counter terrorism as terrorists can manipulate migration flows, penetrating EU borders.
Implementation
These maritime activities are performed every two months, for a period of three weeks. A constant situational awareness is maintained despite the lack of a permanent presence through the utilisation of the NATO Maritime Command information network.
This allows for constant logistical support and exchange of information between the EU and NATO, increasing the deterrence of potential criminals while building trust and confidence between both NATO and the EU.
History
Following the
September 11 attacks
The September 11 attacks, also known as 9/11, were four coordinated Islamist terrorist suicide attacks by al-Qaeda against the United States in 2001. Nineteen terrorists hijacked four commercial airliners, crashing the first two into ...
in 2001, NATO launched
Operation Active Endeavour
Operation Active Endeavour was a Navy, maritime operation of the North Atlantic Treaty Organization. It operated in the Mediterranean Sea and was designed to prevent the movement of terrorists or weapons of mass destruction. It had collateral ben ...
in an attempt to deter and disrupt terrorism activities in the Mediterranean Sea, invoking
Article 5 of the Washington Treaty, the collective defence clause.
This was the first time that Article 5 was activated, tasking Operation Active Endeavour with the objective of disrupting terrorist activities, dissuading and preventing future attacks.
For almost 15 years, Operation Active Endeavour monitored, gathered information, patrolled, and boarded merchant ships; making use of readily available surface units, submarines, and maritime patrol aircraft and vessels for these counter-terrorism activities.
By the end of its mission, Operation Active Endeavour had become an extended aero-naval surveillance mission, securing Mediterranean maritime routes and traffic against terrorism.
At the
2016 Warsaw summit
The 2016 Warsaw Summit of the North Atlantic Treaty Organization (NATO) was the 26th formal summit of the heads of state and heads of government of the North Atlantic Treaty Organization, held at the National Stadium, Warsaw, National Stadium i ...
, Operation Active Endeavour was transformed into Operation Sea Guardian, allowing for its mission to perform a much larger and broader range of responsibilities. The knowledge, expertise, and lessons learnt from Operation Active Endeavour, including capabilities and proficiencies in the deterrence of maritime criminal and terrorist activities, were encapsulated into Operation Sea Guardian, before being built upon and expanded through its significantly broader scope.
Following the
2016 Warsaw summit
The 2016 Warsaw Summit of the North Atlantic Treaty Organization (NATO) was the 26th formal summit of the heads of state and heads of government of the North Atlantic Treaty Organization, held at the National Stadium, Warsaw, National Stadium i ...
, NATO stated that: "We have transitioned Operation Active Endeavour, our Article 5 maritime operation in the Mediterranean, which has contributed to the fight against terrorism, to a non-Article 5 Maritime Security Operation, Operation Sea Guardian, able to perform the full range of Maritime Security Operation tasks, as needed".
The integration of maritime policing tasks into Operation Sea Guardian's agenda enabled NATO to pre-emptively secure the Mediterranean and the legitimate order of international freedom of maritime circulation,
allowing for the prioritisation of preventative and containment actions. This transition from Operation Active Endeavour to Operation Sea Guardian is indicative of a greater focus being placed on terrorism, human trafficking, and organised crime rather than on large scale conflicts.
Operation Sea Guardian became centred around the objective of securing maritime security.
It encompassed the role of Operation Active Endeavour in ensuring safety in the Mediterranean whilst moving to strategically focus on permanent surveillance. While in practice this transition can be considered "mainly a change in terminology", it satisfied many diplomatic actors and resolved many political-military tensions, allowing the justification of collective self-defence.
The pre-emptive rationale of Operation Active Endeavour allowed for Operation Sea Guardian to extend surveillance to domains such as migration,
and enabled the construction of a considerably larger maritime security capacity.
Cooperation with the European Union
Operation Sea Guardian has the overarching role of securing the maritime environment, enabling NATO to offer a maritime presence through enhanced partnerships, dialogue, and cooperation,
mitigating gaps in the capacities of individual countries to enforce
maritime law
Maritime law or admiralty law is a body of law that governs nautical issues and private maritime disputes. Admiralty law consists of both domestic law on maritime activities, and private international law governing the relationships between pri ...
.
Within the Mediterranean, this coordination has primarily manifested between NATO and the EU.
The provision of situational awareness and logistical support to the existing
European Union Naval Force (EUNAVFOR) Operation Irini (and previously EUNAVFOR
Operation Sophia
Operation Sophia, formally European Union Naval Force Mediterranean (EU NAVFOR Med), was a military operation of the European Union that was established as a consequence of the April 2015 Libya migrant shipwrecks with the aim of neutralising estab ...
) is a primary task of Operation Sea Guardian, embodying NATO’s comprehensive approach to maritime security.
Joint Declaration
In July 2016, the Joint Declaration between the
European Council
The European Council (informally EUCO) is a collegiate body (directorial system) and a symbolic collective head of state, that defines the overall political direction and general priorities of the European Union (EU). It is composed of the he ...
and the
European Commission
The European Commission (EC) is the primary Executive (government), executive arm of the European Union (EU). It operates as a cabinet government, with a number of European Commissioner, members of the Commission (directorial system, informall ...
was signed, allowing for Operation Sea Guardian to cooperate with the
European Union Naval Force (UNAVFOR), recognising that this would further facilitate and enhance the European Union's
Operation Sophia
Operation Sophia, formally European Union Naval Force Mediterranean (EU NAVFOR Med), was a military operation of the European Union that was established as a consequence of the April 2015 Libya migrant shipwrecks with the aim of neutralising estab ...
(and later
Operation Irini) with the provision of information, surveillance, and logistical support.
The Joint Declaration allowed the EU and NATO (and their
twenty-two common member states) to systematically engage in closer strategic and operational cooperation.
This renewed effort to address safeguarding as a long-term interest of both institutions led to a mutual reliance on each other with further collaboration including mutual invitations to summits and cooperation on numerous projects across a broad range of policy areas as they aim to tackle global challenges and manage crises.
The launch of Operation Sea Guardian and subsequent implementation of the EU-NATO Joint Declaration allowed for greater crisis management in the Mediterranean Sea – laying out a new framework for the promotion of greater levels of regional dialogue and an improvement of maritime security cooperation through increased presence and surveillance.
A networked approach was achieved by leveraging of expertise and financial resources of both institutions.
The agreement also strengthened cooperation in counterterrorism, giving substance to their strategic partnership
by creating a shared vision of combatting common security threats. This catalysed cooperation in the fight against terrorism by stepping up the exchange of information, coordinating their counter-terrorism support for partner states, and working to improve national resilience against terrorist attacks.
Operation Sea Guardian and Operation Sophia
NATO's Operation Sea Guardian was designed to operate in parallel with the EU's
Operation Sophia
Operation Sophia, formally European Union Naval Force Mediterranean (EU NAVFOR Med), was a military operation of the European Union that was established as a consequence of the April 2015 Libya migrant shipwrecks with the aim of neutralising estab ...
, especially in terms of their counter-smuggling networks mandates.
Both maritime operations were able to benefit from real-time information sharing and logistical support. This support ranged from offering assistance in refuelling to the exchange of advice
Operation Sophia was established predominantly to impede human trafficking and smuggling, aiming to prevent loss of life at sea
The core mandate of the operation was to identify, capture, and dispose of vessels and enabling assets used or suspected of being used by migrant smugglers or traffickers.
Following the peak of the migration crisis in 2015, the operation was additionally tasked with fighting illegal weapon trafficking and training the
Libyan Coast Guard, as well as gathering information on all types of illegal smuggling – from humans and weapons to drugs and oil.
In July 2017, NATO agreed to support Operation Sophia in the implementation of
United Nations Security Council resolutions 2236 (2016) and 2357 (2017), linked to the arms embargo on Libya.
Both organisations further enhanced their fight against people smuggling networks by instigating counter-terrorism activities in Libya.
Throughout the period of the establishment of Operation Sea Guardian in 2016 to the end of Operation Sophia in 2020, their similar mandates and operational convergence led to a very successful pattern of collaboration, enhancing both operations.
To avoid competition and overlap between their security echelons in a shared maritime security domain, this coordination was essential.
The information shared between the operations included daily operations, situational reports, sailing intentions, and schedules; preventing a duplication of tasks.
Operation Sea Guardian and Operation Irini
When the
EUNAVFOR Operation Sophia
Operation Sophia, formally European Union Naval Force Mediterranean (EU NAVFOR Med), was a military operation of the European Union that was established as a consequence of the April 2015 Libya migrant shipwrecks with the aim of neutralising estab ...
ended in March 2020, it was replaced by
Operation Irini. While Operation Irini has similarities in mandate and geographical focus to that of Operation Sophia, the primary task changed to a greater focus on the implementation of the UN
Arms embargo
An arms embargo is a restriction or a set of sanctions that applies either solely to weaponry or also to "dual-use technology." An arms embargo may serve one or more purposes:
* to signal disapproval of the behavior of a certain actor
* to maintain ...
on Libya.
The mandates of Operation Irini and Operation Sea Guardian are aligned as they are both oriented around the goal of upholding maritime security.
Both are focused on the prevention of human smuggling and monitoring of maritime crime networks – ''Irini'' within the Libyan conflict and ''Sea Guardian'' through counterterrorism.
''Çirkin'' incident
On the 10th of June 2020, a maritime incident occurred between France and Turkey. The French frigate ,
flagship
A flagship is a vessel used by the commanding officer of a group of navy, naval ships, characteristically a flag officer entitled by custom to fly a distinguishing flag. Used more loosely, it is the lead ship in a fleet of vessels, typically ...
of the Sea Guardian force, was illuminated three times by targeting radar as it attempted to approach the Tanzanian-flagged cargo ship, ''Çirkin'', which was under
Turkish Navy
The Turkish Naval Forces (), or Turkish Navy (), is the naval warfare service branch of the TAF.
The modern naval traditions and customs of the Turkish Navy can be traced back to 10 July 1920, when it was established as the ''Directorate o ...
escort. The radar targeting acted as a "last warning" before a missile attack.
This incident occurred when ''Courbet'' acted on suspicion that the cargo ship may have been breaching UN Security Council Resolution 2473 – the
United Nations
The United Nations (UN) is the Earth, global intergovernmental organization established by the signing of the Charter of the United Nations, UN Charter on 26 June 1945 with the stated purpose of maintaining international peace and internationa ...
arms embargo
An arms embargo is a restriction or a set of sanctions that applies either solely to weaponry or also to "dual-use technology." An arms embargo may serve one or more purposes:
* to signal disapproval of the behavior of a certain actor
* to maintain ...
.
Previously, the ship had also been stopped by a Greek frigate operating under Operation Irini, but the Turkish navy had stepped in to prevent the ship from being searched.
The Turkish government denied the French accusation that Çirkin had been carrying arms to Libya and demanded an apology, stating that the ship was instead transporting humanitarian supplies.
On 21 September 2020, the
European Union
The European Union (EU) is a supranational union, supranational political union, political and economic union of Member state of the European Union, member states that are Geography of the European Union, located primarily in Europe. The u ...
sanctioned the Turkish maritime company ''Avrasya Shipping'', which operates the freighter ''Çirkin'', as the vessel was "found to have violated the arms embargo" imposed upon Libya in May and June 2020.
The
Council of the European Union
The Council of the European Union, often referred to in the treaties and other official documents simply as the Council, and less formally known as the Council of Ministers, is the third of the seven institutions of the European Union (EU) a ...
made this decision in accordance with the 2011 United Nations Security Council arms embargo, after confirming that ''Çirkin'' had been used for military cargo smuggling and transportation.
As a result of this incident, France withdrew from NATO's Operation Sea Guardian. The French Defence Minister described the actions of the Turkish Navy as being "hostile" according to NATO's rules of engagement, further criticising the alliance by stating that it is not possible to "pretend that there is not, at present, a Turkish problem in NATO. It is necessary to see it, to affirm it and to address it."
President Macron also brought up that the signatory states of the Berlin Conference have the commitment to "refrain from interference in the armed conflict or in the internal affairs of Libya" – stating that there had been a "explicit and serious infringement" of this agreement by Turkey.
France now only participates in the EU's Operation Irini (Marghelis, 2021), ending the French Operation Sea Guardian contributions.
References
{{DEFAULTSORT:Sea Guardian, Operation
France–Turkey relations
21st-century military operations
Turkey and NATO
Military operations involving NATO
Military operations involving Portugal