Interallied Confederation of Reserve Officers

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Interallied Confederation of Reserve Officers

Formation	1948; 76 years ago (1948)
Headquarters	Brussels, Belgium
Membership	~1.3 million
President	Col. Jørn Buø
Website	cior.net

The Interallied Confederation of Reserve Officers, commonly referred to by its French acronym CIOR (Confédération Interalliée des Officiers de Réserve), is a confederation of reserve officers' associations within NATO and beyond.^[1]

Founded in 1948, CIOR today has 34 participating countries and represents over one million reservists. It is the world’s largest military reserve officers' organization.^[2]

CIOR is sanctioned and formally recognized by NATO through document MC 0248/2 to assist and advise on reserve affairs, however, it is politically independent. The confederation promotes and organizes advanced training measures, international seminars, and working meetings for reserve officers.

Even before the Second World War, there were contacts between the reserve officers' associations of Belgium, France, and the Netherlands. These connections were revived in 1946 after the end of the war. On November 20, 1948, they led to the first congress and the formal establishment of the “Conféderation Interalliée des Officiers de Réserve”.

Over time, other countries were gradually added: Luxembourg (1952), Denmark (1956), Greece (1956), the United States (1958), Italy (1960), Germany (1961), Great Britain (1963), Canada (1964), Norway (1966), Spain (1992), and Estonia (1999).