European Gendarmerie Force in the context of "Rapid reaction force"

A gendarmerie (/ʒɒnˈdɑːrməri, ʒɒ̃-/) is a military or paramilitary force with law enforcement duties among the civilian population. The term gendarme (English: /ˈʒɒndɑːrm/) is derived from the medieval French expression gens d'armes, which translates to 'men-at-arms' (lit. 'people of arms'). In France and some Francophone nations, the gendarmerie is a branch of the armed forces that is responsible for internal security in parts of the territory (primarily in rural areas and small towns in the case of France), with additional duties as military police for the armed forces. It was introduced to several other Western European countries during the Napoleonic conquests. In the mid-twentieth century, a number of former French mandates and colonial possessions (such as Lebanon, Syria, the Ivory Coast and the Republic of the Congo) adopted a gendarmerie after independence.

Similar forces exist in most European countries. The European Gendarmerie Force is a structure, aligned with the European Union, that facilitates joint operations. A similar concept to gendarmerie exists in Russia in the form of internal troops, which are present in many CIS states.