When they were kids in Poland, their father, fearing for his son's safety, gave them a little bit of money and told them to walk west, to just keep walking west across Europe.
Детьми они жили в Польше. Но отец, опасаясь за сыновей, дал им  немного денег и велел идти на запад. Буквально пешком пересечь Европу к западу.