The Secret Invasion

The Secret Invasion aka Dubious Patriots is a 1964 American war film directed by Roger Corman. It stars Stewart Granger, Raf Vallone, Mickey Rooney, Edd Byrnes, Henry Silva, Spela Rozin and William Campbell. Appearing a number of years before The Dirty Dozen 1967, the film features a similar World War II mission where convicts are recruited by the Allies for an extremely hazardous operation behind enemy lines.

With the assistance of local partisans led by Marko Peter Coe, they split up and enter Dubrovnik. Durrell is partnered with Mila Mia Massini, a recent widow with a baby. They are attracted to each other, but Durrell becomes extremely distraught when he accidentally smothers her crying child to avoid detection by a German patrol. The team is captured and taken to the same fortress where the Italian general is being kept. They are tortured for information, but manage to escape and fulfill their mission, although Mace, Mila, Fell, Scanlon and Saval are killed while fending off German troops.At the last minute, Rocca and Durrell discover that the man they have freed is an impostor, and he is about to exhort his troops to stay loyal to the Axis. Durrell pretends to be a Nazi fanatic and shoots the fake general he is killed by the outraged Italians. Rocca, the last man standing, directs the Italians anger to the Germans. ........

Source: Wikipedia