Some World War II Italian Prisoners of War were kept at Fort Wayne. via [this link]

The Da Edoardo restaurants were founded by an Italian POW:

Edoardo Barbieri, founder of the Da Edoardo restaurants in Michigan, immigrated to the Detroit area after the end of World War II. He served in the Italian army in North Africa when he was captured by allied forces and then sent to the United States for interment in a series of prisoner war camps located in Las Vegas, Fort Wayne and Detroit. Assigned to the Mess Hall, Edoardo cooked himself into a new profession.

http://DaEdoardo.com/aboutus.htm