STALAG WISCONSIN: Inside WW II prisoner-of-war camps is a comprehensive look inside Wisconsin's 38 branch camps that held 20,000 Nazi and Japanese prisoners of war during World War II. Many of these prisoners blended with the local community, drinking at taverns and even dating local girls. Some returned and settled in Wisconsin after their release. Their familiarity with local residents caused resentment by returning soliders who had battled them in Europe and Asia.