During World War I, the Chasseurs Alpins—nicknamed "les Diables Bleus"—were well-known French soldiers. They first gained attention when their unique training and alpine knowledge was counted upon to break the stalemate of trench warfare in their native region of the French Alps.
Unfortunately the Vosges Campaign in March, 1915, failed to alter the status quo even though the Blue Devils won accolades for their courage. However, their distinctive blue uniform with flowing cape and jaunty beret captured public imagination.
When the United States entered the war, units of the French Blue Devils toured the country helping raise money in the war effort. Irving Berlin captured their spirit in song describing them as "strong and active, most attractive . . . those Devils, the Blue Devils of France."