The French Foreign Legion has had a long and unique history amongst the units of the French Army. It was historically formed of expatriate enlisted personnel led by French officers. Founded by a royal ordinance issued by King Louis Philippe of France on March 9, 1831 with aim of bolstering the strength of the French Army while also finding a use for the influx of refugees inundating France at the time. The Foreign Legion subsequently found a permanent home in the ranks of the French military. The Foreign Legion's history spans across Conquest of Algeria, the Franco-Prussian War, numerous colonial exploits, both World Wars, the First Indochina War, and the Algerian War.