The Chief of Defence (French: Chef d’État-major de l'Armée) is a position in the military of Luxembourg and head of the Luxembourg Army.

The Chief of Defence is the professional head of the armed forces, and in charge of the day-to-day operation.

The current Chief of Defence is Steve Thull.

He is formally subordinate to the Grand Duke, whom the Constitution names as the commander-in-chief,[1] but answers to the Minister for Defence in the civilian government.

[2] Source: Army of Luxembourg Archived 2014-11-19 at the Wayback Machine