MARCOM

Search our content

Home  /  Media Centre  /  News  /  2025  /  NATO ships take part in largest NATO exercise of 2025 during first large-scale deployment of Allied Reaction Force (ARF)

Mar 3 2025

NATO ships take part in largest NATO exercise of 2025 during first large-scale deployment of Allied Reaction Force (ARF)

Aegean Sea – Two of NATO’s naval task groups have taken part in NATO’s largest exercise of 2025, Exercise Steadfast Dart, in the Aegean Sea. The exercise took place from 10 - 17 February 2025.

The ships of both Standing NATO Maritime Group 2 (SNMG2) and Standing NATO Mine Countermeasures Group 2 (SNMCMG2) played a significant role in this large-scale multinational exercise, designed to boost working relationships between NATO Allies and Partners.

This was also the first time NATO’s Allied Response Force Doctrine was used in an exercise scenario. Exercise Steadfast Dart 2025 was designed to test and train the operational deployment of the Allied Reaction Force (ARF) to NATO Vigilance Area South-East. The doctrine encompasses maritime, air and land activity, aiming to strengthen the Alliance's collective defence capabilities while demonstrating unity and resolve.

SNMG2 naval units from France, Greece, Italy, Spain and Türkiye, along with staff from Bulgaria and the United Kingdom, demonstrated their professionalism and expertise throughout the exercise. The ships taking part were flagship TCG Kemalreis, FS Commandant Birot,
HS Kountouriotis, ITS Thaon di Revel, ESPS Álvaro de Bazán and ESPS Patino, reinforced by HS Limnos and other ARF Units. More than 1,000 crew members from across NATO nations were on board, working tirelessly to ensure that the exercise aims and objectives were met.
SNMG2 accomplished its mission in the first ever ARF exercise and enhanced vigilance activity through Exercise Steadfast Dart 25, demonstrating once again the leverage of having a standing naval force at sea at all times
Ships assigned to Standing NATO Maritime Group 2 operating in the Aegean Sea during their participation in Exercise Steadfast Dart with NATO's Allied Reaction Force (ARF)

The task group practised a wide range of activities, including escort operations for deployed units such as Aircraft Carriers and Amphibious Ships, anti-submarine warfare, Naval Gunfire Support (NGS), air defence, anti-surface firings and operations and Maritime Interdiction Operations. Additionally, SNMG2 units carried out many replenishments-at-sea, where they tested both ship-handling skills and the logistical capabilities of NATO’s maritime forces under challenging conditions.

The crew’s dedication was particularly evident as they endured harsh weather and rough seas, making the execution of these complex operations even more challenging.

“SNMG2 accomplished its mission in the first ever ARF exercise and enhanced vigilance activity through Exercise Steadfast Dart 25, demonstrating once again the leverage of having a standing naval force at sea at all times”, said the Commander of SNMG2, Turkish Navy Rear Admiral H. Ilker Avci. “The exercise has also been very beneficial for enhancing interoperability and testing the newly formed command and control structures of the Alliance.”

Standing NATO Mine Countermeasures Group 2 flagship TCG Yzb. Güngör Durmuş accompanied by TCG Ayvalık and FS Capricorne demonstrated skill and coordination while executing Asymmetrical Threat Training during NATO's exercise Steadfast Dart 25.

The SNMCMG2 ships taking part were TCG Yüzbaşı Güngör Durmuş (flagship), Turkish minehunter TCG Ayvalık and French minehunter FS Capricorne. Together, they successfully conducted mine countermeasures training as part of the exercise scenario, demonstrating their ability to secure vital sea lines of communication (SLOC). The exercise highlighted SNMCMG2’s operational readiness, as well as the effectiveness of NATO’s combined maritime capabilities in ensuring safe passage for Allied naval forces.

Exercise Steadfast Dart 25 provided a dynamic and challenging environment where NATO forces refined their coordination and tactical proficiency

“Exercise Steadfast Dart 25 provided a dynamic and challenging environment where NATO forces refined their coordination and tactical proficiency,” said the Commander of SNMCMG2 Turkish Navy Captain Kürsat Kurnaz. “The operation highlighted the adaptability of multinational teams, reinforcing strong partnerships and ensuring seamless cooperation across different domains. The dedication and professionalism of all participants played a crucial role in executing complex scenarios successfully, demonstrating NATO’s commitment to maritime security and collective defence.”

The SNMCMG2 crew carried out mine countermeasure (MCM) operations to practice dive-accident response, ensuring the MCM vessels are prepared for real-world challenges. This intensive training and cooperation underscores the multinational teamwork required to maintain freedom of navigation in the waters.

“Working side by side, our multinational team located and neutralised mines, showcasing how teamwork and interoperability keep the Alliance’s waters and critical underwater infrastructures safe,” said Captain Kurnaz. “By training together, we enhance our readiness to maintain maritime security and send a clear message of strategic deterrence to any potential threat. We are always ready to keep the routes clear.”

With enhanced operational readiness, improved interoperability, and refined deployment capabilities, NATO’s maritime capabilities were tested, validated, and strengthened during Steadfast Dart 25.

SNMG2 and SNMCMG2 are two of NATO’s four standing maritime task groups. These task groups form the core maritime capability of NATO’s Allied Reaction Force (ARF) and provide a continuous maritime capability to execute NATO missions across the spectrum of operations, demonstrating solidarity and strengthening the bond and interoperability between Allied naval forces.

Story by Public Affairs Office at MARCOM

Search our content:

Address

HQ Allied Maritime Command
MARCOM Records Centre
Information Management Branch
Northwood HQ, Atlantic Building
Sandy Lane, Northwood HA6 3HP
United Kingdom

Media Operations

Public Affairs Office
Atlantic Building, Northwood HQ
publicaffairs@mc.nato.int