AHC: French Sardinia

De la Rocque takes power in 1934 february 6. War breaks out with Mussolini attacking Corsica. France curbstomp Italy and seize Sardinia either by force or through a peace treaty / reparations, Versailles style.
 
Not post 1900 but maybe you could have france manage to gradually conquer and somewhat assimilate it gradually over the 15, 16, and 17 hundreds
 
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