Supreme headquarters
Allied Powers Europe

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The Supreme Allied
Commander Europe

One of the two strategic commanders for NATO and the commanding officer of Allied Command Operations (ACO). The current SACEUR is General Tod D. Wolters. The SACEUR is responsible to NATO's Military Committee, the highest military authority in NATO, for the overall direction and conduct of military operations for NATO. SACEUR, a United States Flag or General officer, leads all NATO military operations and is dual-hatted as Commander US European Command. His command is exercised from the Supreme Headquarters Allied Powers Europe (SHAPE) at Casteau, Mons, Belgium.



Steadfast Defender 2021 is a collective defence exercise based on an Article 5 scenario.

The exercise will enhance Alliance security by maintaining NATO's broad range of interoperability and military capabilities to deter potential adversaries and assure Allies of NATO's ability to defend them. The geographical locations of the exercise and the scale of deployment across sea, land, air and the range of military capabilities involved reflect NATO's resolve to deter, and where necessary, to confront and defeat, potential aggressors.

Steadfast Defender


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Knowing NATO

Welcome to SHAPE's "Knowing NATO" series. 

What is NATO?  What is a NATO mission?  
What makes up NATO troops?  

Every month, join SHAPE's German Master Sergeant Pia Dunkel as she explains all you need to know about the world's greatest Alliance. 

Follow us on this visual journey to know NATO better and discover complementary articles on every subject.

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crest SHAPE

Vigilance is the Price of Liberty

Vigilia Pretium Libertatis

one vision:

Allied Command Operations (ACO) will be a top-quality command responsible for the planning and execution of combined, joint, effects-based operations.

One mission:

To prepare for, plan and conduct military operations in order to meet Alliance political objectives.


Rue Grande
7010 Mons

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