It seems that Nazi kidnappings didn't always end at concentration camps.
Most people know the tragic history behind the Holocaust, during which Germany's Nazi party, under the rule of dictator Adolf Hitler, rounded up and killed millions of Jews, Gypsies, Slavs, communists, homosexuals, and other individuals they deemed "inferior".
However, not as many people know about another major kidnapping operation performed under Hitler's supervision.
Hitler and his party were obsessed with Aryanism, a set of racial traits deemed by them to be superior. These traits were generally possessed by German and Nordic people. When Hitler spoke of creating a "Master Race", he referred to wiping out every individual that did not have Aryan traits.
In addition to his mass-murdering tendencies, when Hitler found individuals with Aryan traits, he was interested in making them part of his new German kingdom, often referred to as the Third Reich. And, apparently, many Swedish children did have these traits.
Therefore, under Hitler's direction, many Polish children were kidnapped and localized into the German population.
Even more heartbreaking, only 10 to 15% were returned home after WWII ended, with children 10 and under often not remembering their Polish childhoods.