BRUSSELS, July 8 — The shift is subtle but structural: NATO’s military command architecture is being reshaped for a faster, more contested era. The alliance’s two strategic commands—Allied Command Operations (ACO) in Mons, Belgium, and Allied Command Transformation (ACT) in Norfolk, Virginia—now face a new calculus of readiness that goes far beyond Cold War deterrence. ACO, headquartered at Supreme Headquarters Allied Powers Europe (SHAPE), is responsible for planning and executing all NATO operations.
It is led by the Supreme Allied Commander Europe (SACEUR), a U.S. general who also serves as commander of U.S. European Command. As of 2023, that post is held by General Christopher G.
Cavoli. Across the Atlantic, ACT in Norfolk is focused on transforming NATO’s capabilities and doctrine. The two commands are designed to be complementary: ACO plans and executes operations, ACT transforms capabilities.
But the trend underneath is about speed and scale. NATO’s Response Force (NRF), established in 2003, was the alliance’s first serious attempt at rapid deployment—a multinational force of up to 40,000 troops.
For two decades, it was the benchmark for crisis response. What’s changing is that the NRF model, while still active, is being superseded by a far more ambitious framework. In 2022, NATO adopted a new force model that puts 300,000 troops at higher readiness.
That is a substantial increase in the number of forces the alliance expects to be able to move quickly. The military command structure remains subordinate to the North Atlantic Council (NAC), the alliance’s principal political decision-making body. Chaired by the Secretary General, the NAC includes permanent representatives from all member states and meets at least weekly.
No major military deployment happens without its approval. The Military Committee, composed of each member’s chief of defense, advises the NAC.
For a journalist watching the technology and readiness angles, the key question is how ACT will adapt the new force model to emerging domains. Watch this space: the 300,000-troop model is a political commitment, but the real test will be whether the command structure can actually move those forces faster than an adversary can adapt.
