Who was the leader of the German Nazi party during the 1930s and 1940s?

The leader of the German Nazi party during the 1930s and 1940s was Adolf Hitler. He rose to power by capitalizing on economic woes, political instability, and societal discontent in post-World War I Germany. Hitler's leadership was characterized by the promotion of an extreme nationalist ideology, totalitarian governance, and aggressive expansionism that ultimately led to World War II. Under his regime, policies of anti-Semitism and militarism were implemented, resulting in widespread atrocities, including the Holocaust. His influence shaped the course of German and world history during that era, making him a pivotal figure in understanding the dynamics of the period.