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| 1st Infantry Regiment | |
|---|---|
| French: 1er régiment d'infanterie | |
&sq=&lang=&file=File:Insigne_du_1er_r%C3%A9giment_d%27infanterie_(1er_RI).svg) Insignia of the 1st Infantry Regiment. | |
| Active | 1479–present |
| Country | France |
| Branch | Army |
| Type | Mechanised infantry |
| Size | 1 regiment (1,150) |
| Part of | Franco-German Brigade part of 1st Division |
| Garrison/HQ | Sarrebourg, France |
| Motto(s) | On ne relève pas Picardie |
| Engagements | French Revolutionary Wars Napoleonic Wars Franco-Prussian War World War I World War II Cold War |
The 1st Infantry Regiment (French: 1er Régiment d'Infanterie) or 1er RI is an infantry regiment of the French Army, founded in 1479[citation needed] as one of the oldest regiments in active service in the world. It is an offspring of the bande de Picardie under the Ancien Régime, and one of the five oldest regiments in France. It particularly distinguished itself, as the 1ère Demi-Brigade d'Infanterie de Ligne, during the French Revolutionary Wars at the Battles of Fleurus (1794), Messkirch (1800) and Biberach (1800). The regiment has been patroned by the city of Saint-Amand-Montrond since 12 April 2003.
The 1er RI is the only French infantry regiment to feature a squadron specialised in urban warfare, the Groupe Commando d'Investigation (CGI, "Investigation Commando Group"). The CGI is, with the Compagnie de Combat en zone Urbaine of the 2nd Foreign Parachute Regiment, the benchmark for urban combat in the French military.