The final excavation season of the "Living with War Archaeological Research Project" will take place at the C.W. Cooper site in Fulton County, Illinois from June 17 to August 1, 2013.  This three year project explores the catastrophic and wide-ranging consequences of war on Mississippian period (A.D. 1100-1425) communities in the Central Illinois River Valley (CIRV). Archaeological data linking escalating violence with both population nucleation and declining health in the Central Illinois River Valley from A.D. 1200 to 1425 reveal that the causal dimensions of warfare were not restricted to political centralization and collapse but reshaped other, more mundane aspects of life. Determining the impacts of this violence on the Mississippian groups subject to these hostilities will help explain the historical trajectory of conflict culminating in the abandonment of the region around A.D. 1425