What was one major result of the Salerno invasion? Roosevelt won reelection. Stalin consolidated his power. Churchill lost popular support. Mussolini was forced to resign.

"Mussolini was forced to resign" is the one among the following choices given in the question that was one major result of the Salerno invasion. The correct option among all the options that are given in the question is the fourth option or the last option. I hope that this is the answer that has come to your help.