Ow did the French colonialism affect the class structure of Vietnam?

What were the various economic and colonial policies of the French, and how did these economic policies affect the peasant life in general and land ownership patterns in particular? What was the impact of the issue of land in the Vietnam Wars? What were the programs of the French, the Viet Minh, the Diem government (and by extension, Diems American sponsor) and the National Liberation Front with respect to land ownership.