On April 7, 2025, U.S. Air Force General Alexus Grynkewich officially assumed the role of NATO’s Supreme Allied Commander Europe (SACEUR) during a change of command ceremony in Mons, Belgium. He emphasized the increasing complexity and interconnectedness of threats facing NATO, yet expressed confidence in the alliance’s capability to address these challenges. Grynkewich stated that the threats are “no match” for NATO’s unity and resolve, framing this moment as consequential for both the alliance and its partners. His appointment, which followed the tenure of General Christopher Cavoli, aims to build on existing momentum in transforming NATO’s command operations.
Grynkewich’s responsibilities include planning and executing all NATO military operations, identifying necessary forces for various missions, and advising NATO’s political and military authorities. His role is pivotal in ensuring the alliance’s readiness to respond decisively to any aggression against member states. The position of SACEUR, held exclusively by U.S. military personnel since its inception, does not have a fixed term, with previous commanders serving between one to eight years, allowing for continuity and adaptability in leadership within NATO.
During the transition, General Cavoli praised Grynkewich, highlighting his leadership as crucial amid the potentially dangerous future facing the alliance. He noted that the essence of NATO’s future will hinge on collective defense, requiring member states to elevate their collaborative efforts. This sentiment underscores the importance of unity in the face of evolving security challenges, reminiscent of NATO’s historical commitment to mutual defense.
In light of these challenges, NATO allies recently agreed to significantly increase their defense spending target from 2% to 5% of GDP. This new benchmark is divided into two components: 3.5% for core defense spending, focused on military hardware, and 1.5% for defense-related investments such as cybersecurity and dual-purpose infrastructure. This shift is reflective of a consensus among NATO leaders regarding the persistent threat posed by Russia, particularly following its full-scale invasion of Ukraine in 2022, which is seen as a precursor to potential aggression against other European allies.
The financial boost aims to enhance NATO’s collective defense capabilities and signal a commitment to safeguarding Euro-Atlantic security. Grynkewich’s new leadership coincides with a growing realization that NATO must adapt to a changing security landscape characterized by heightened tensions with Russia. The increase in defense spending has been framed as a victory for former President Trump, known for pressing European allies on their commitment to defense expenditures.
As uncertainties loom regarding the U.S. long-term support for NATO, concerns have emerged about a potential military drawdown and troop reductions in Europe. These apprehensions highlight the delicate balance the alliance must maintain, particularly in the context of leadership changes and shifting political dynamics in Washington. General Grynkewich’s commitment to preserving NATO’s effectiveness will be crucial as the alliance navigates these complexities and works to strengthen its collective deterrence against evolving threats.
