From October 1917 to March 1919, the barracks became Camp Kosciuszko, home to the Polish Army in France, aka Haller's Army and the Blue Army.
From October 1917 to March 1919, the Polish Army trained at Niagara Camp in an area known as Camp Kosciuszko. These men would go on to fight alongside the French Forces in Haller's Army and the Blue Army.