This is a memorial for the French soldiers who fought against the Germans in WWII
Rough translation (very rough!)
On these Vosges hills overlooking the Alsatian plains in high snow and minus 20 degree Celsius temperatures, The soldiers from France, Africa (French territorials) and United States cam together in the premiere army in France under the command of General De Lattre De Tassigny were victorious in the battle of Colmar 20 January-9 February 1945