Answer:
20. <u> Camillo di Cavour</u> Worked to bring about the unification of Italy.
*I can't see the options for 21*
Some politicians became successful by opposing communism.
Because they knew that Germans could sink any ship they want. They could sink civilian ships. Back then, the only way to travel long distances was by boat, because passenger airplanes had not been invented. The Germans could now sink them if they wanted to travel somewhere, so they either risk their life or not go on trips.