Great Midwest Commonwealth

The  or Midwest Commonwealth was one of the thirteen commonwealths of the pre-war United States of America. Created in the early 21st century, it was comprised of the former states of Wisconsin, Minnesota, Illinois, Indiana and Michigan.

Illinois Wasteland
The Illinois Wasteland was conquered by Brotherhood of Steel deserters known as the Midwestern Brotherhood. They led a harsh rule on the state. An Enclave outpost is also said to be located in the boundaries of Chicago.

Known places

 * Chicago (Fallout Tactics)
 * Dirt Haven (Fallout Tactics)

Appearances
Places in the Great Midwest Commonwealth appear in Fallout Tactics, and were mentioned in Fallout: New Vegas and Van Buren.