Allied Joint Support and Enabling Command - JSEC

Celebrating Portugal’s National Day 2026. Portugal’s history, values, and steadfast commitment to collective security continue to strengthen the Alliance.

Celebrating Sweden’s National Day 2026! Sweden’s rich traditions and pursuit of diplomacy now strengthen NATO’s cooperative spirit.

Celebrating Denmark’s National Day 2026! Denmark’s democratic principles remain a cornerstone of NATO’s shared goals.

Celebrating Italy’s National Day 2026! Italy’s journey to democracy and its rich cultural heritage bolster NATO’s vision of a united alliance.

Celebrating Croatia’s Statehood Day 2026! Croatia’s proud history of statehood underscores its vital role within NATO’s collaborative alliance.

Celebrating Norway’s Constitution Day 2026! Norway’s celebration of constitutional rights underscores NATO’s mission to protect democratic freedoms.

It's a wrap! STEADFAST DETERRENCE 2026 has come to close for all ACO Commands and 32 participating Allies. The exercise showcased how JSEC and Enablement can make a difference in deterrence.

Thank you to the NATO Joint Warfare Centre for leading STEADFAST DETERRENCE 2026 and advancing NATO’s collective readiness, innovation, and deterrence across the Euro-Atlantic area. Proud to contribute alongside our Allies and partners. Tusen Takk!

"STEADFAST DETERRENCE 2026 was designed to replicate the complexities in the Arctic and the High North, integrating real-world plans, cutting-edge simulation technologies and AI-enabled warfighting platforms. Overall, STEADFAST DETERRENCE 2026 played a major role in operationalizing NATO's Concept for Deterrence and Defence of the Euro-Atlantic Area, demonstrating that we train to fight and win."

- Major General Ruprecht von Butler, Commander NATO Joint Warfare Centre (JWC), and the Exercise Director


Supreme Headquarters Allied Powers Europe (SHAPE)
NATO - Allied Command Transformation (ACT)

“The NATO Senior Mentor Program (SMP) consists of retired Flag and General Officers who serve as Senior Mentors within Allied Command Operations (ACO) and Allied Command Transformation (ACT). These Senior Mentors play a pivotal role at both the strategic and operational levels, offering their expertise to support training and exercises across various command structures and headquarters."

“Throughout the exercise STEADFAST DETERRENCE 2026, I provide invaluable input, guidance, coaching, and advice to NATO commanders and senior staff. My contribution is especially significant in areas such as planning and executing operations, leadership development, and optimizing staff functions.”

“Following the completion of the exercise, I have contributed to enhance JSEC’s capabilities to coordinate the enablement of the theatre and support a seamless projection of forces on time, at place, on scale.”

- JSEC Senior Mentor, Lieutenant General (ret) Luis Lanchares -

“Coordination and communication across commands and nations are key. We must stay agile and adaptive to respond effectively to operational challenges.”

“Exercises like this ensure NATO forces can work together quickly and effectively when needed. Through teamwork, professionalism and readiness, JSEC and the Alliance remain prepared to protect and defend every inch of Allied territory.”

- JSEC Chief of Staff, Major General Detlev Simons -

Read more on JSEC webpage 👉 urlr.me/VgZUSa

"Being part of exercise STEADFAST DETERRENCE 2026 as a Logistics Subject Matter Expert is both a privilege and an honor. I value the opportunity to work alongside highly motivated professionals and contribute to operationalising resilience in practice - enabling the free flow of force and sustainment with personnel, equipment, and supplies reaching the right place at the right time, always ready to support the mission."

- J4 Subject Matter Expert in JSEC Joint Operations Centre -