Prologue:
1860.
Garibaldi and his thousand red shirts are defeat and destroyed,shortly after the landing in Sicily by Swiss regiments of the Kingdom of two Sicily (in OTL disbanded by young and inexpert new King Francesco II in 1859).
After the victory Francesco II grants the constitution,and makes many necessary reforms.
So in Italy we have three states:
The Kingdom of high Italy,under the Savoy dinasty (Capital Florence),
The Papal State (only lazio region,Capital Rome),
The Kingdom of Two Sicily (Capital Naples).
The war of 1866 is almost like in OTL: the Kingdom of high Italy is allied with Prussia aganist Austrian Empire,while the Kingdom of two Sicily is neutral.
At the end Prussia defeat Austria,and Savoy Dinasty take the Veneto region.
In 1870 Papal states remain independent.
In 1882,Kingdom of High Italy and Kingdom of Naples become members of Quadruple alliance,with Germany and Austria–Hungary.
The Kingdom of High Italy is prosperous but relatively small, so in 1911 we don't have the Italo turkish war, with Italian conquest of Lybia (that remains Ottoman).
In 1914 begins WW-I.
Kingdom of high Italy and Kingdom of two Sicily remain both neutral.
In 1915,however,the Kingdom of high Italy joint to Allied aganist Central Empire.
the Kingdom of two Sicily remains neutral.
So,which are the consequences on WW-I to have only half Italy in war?
