World War II provided the Nazis with an opportunity to adopt more radical measures against the Jews for a number of reasons. First, the war created a climate of fear and instability that allowed the Nazis to more easily scapegoat and demonize Jews, blaming them for Germany's problems. Second, the war led to the occupation of many European countries, including Poland, which had a large Jewish population. This gave the Nazis control over more Jews than ever before, and allowed them to implement their "Final Solution" more efficiently. Finally, the war created a sense of urgency and desperation within the Nazi leadership, which may have led them to adopt more radical measures in an attempt to win the war. Overall, the combination of wartime conditions and Nazi ideology created a perfect storm that allowed the Nazis to implement their genocidal policies with devastating effect.