Complex sentence: Paramilitary formations of the Croatian Peasant Party ("Hrvatska Seljačka Stranka", HSS) disarmed soldiers, and by 11 April, there were no organized military formations in Split, and a large number of police and gendarmerie switched their allegiance to the NDH.
Split into simpler sentences: Paramilitary formations of the Croatian Peasant Party (HSS) disarmed soldiers. By 11 April, there were no organized military formations remaining in Split, and a large number of police and gendarmerie switched their allegiance to the NDH.