A collective naturalization happens when territories switch countries. An example of this can be Louisiana where people had French citizenship and then they all became American citizens when the US got it from France. Same can be said for Texas or for Alaska or for Hawaii. If a territory starts belonging to another country, then all the people on it become naturalized citizens.
In Don Quixote, Miguel de Cervantes uses the story of a man who dresses up like a knight to explore "human nature", since the story tracks Don Quixote through the adventures of daily life. <span />
To ensure that the Aryan race was to become the master race and to ensure that the population was increased to fight for Germany in WW2