Taiwan-like concept: Italy

A new concept I would like to explore: the Chinese civil war led to the flee of the KMT government to the island of Taiwan, and to the communist takeover of the mainland.

But how would a similar scenario apply to other countries? I tried first with Italy. A communist (or socialist) takeover of the Italian mainland + Sicily and the retreat of the old government to the island of Sardinia.

In fact, this scenario can be applied to many countries and with many different outcomes...

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