Pigeon Hero!: Based on the True Story — Shirley Raye Redmond

In a town in Italy during World War II the people have surrendered without firing a shot. But American warplanes are due to arrive, and the radio's broken, so no one can tell them to call off the attack! G. I. Joe, a carrier pigeon, is the only one who can take the message to the Americans. Will he make it in time and save the town?