Minnesota Food Cooperative Wars
The Minnesota Food Cooperative Wars took place in 1975-1976 time period and revolved around the many food cooperatives in the Twin Cities region of Minnesota. Initially, the disputes and confrontations within the Twin Cities Cooperative movement were not referred to as "Wars", but the nomenclature developed in part as a result of the title of a documentary made decades later.
Source: Wikipedia — Minnesota Food Cooperative Wars (CC BY-SA 4.0)