"colonial conscripts" by myron echenberg
"la france et ses tirailleurs" by charles onana
"des tranchées de verdun à l'église saint-bernard" by bakari kamian
Unfortunately some of your sources are suspect including Onana...but it's a tortured attempt inteded to demonstrate that yes, there were former muslim slaves who were promised freedom if they fought with the french.
Gee whiz...is that all you have?
You need to get going with these original documents: direct, factual, and no political chicanery like the stuff you are posting.
http://www.tellthechildrenthetruth.com/gallery/