The Grand Ducal Police is the national police force of the Grand Duchy of Luxembourg. The police is under the control of the Minister for the Interior of Luxembourg, although they operate in the name, and under the ultimate control, of the Grand Duke of Luxembourg. Day-to-day executive control is exercised by the Director-General of the Grand Ducal Police. The Grand Ducal Police has existed in its current form since 1 January 2000, when the Grand Ducal Gendarmerie was merged with the police service.

The Luxembourg Armed Forces are the national military force of Luxembourg. The army has been a fully volunteer military since 1967. As of December 2018, it has 939 personnel.