Due to the changes in Poland 's borders since World War II , the Polish government required all Polish citizens to re-register home and abroad .
He had lost citizenship in his home country of Poland , which was unwilling to take him in .
Due to the changes in Poland 's borders since World War II , the Poland government required all Poland citizens to re-register home and abroad .
He had lost citizenship in his home country of Poland , which was unwilling to take him in .