The Nazi era refers to the period in Germany from 1933 to 1945 when the National Socialist German Workers' Party, led by Adolf Hitler, held power. This time was marked by the establishment of a totalitarian regime that promoted extreme nationalism, militarism, and anti-Semitism. The Nazis implemented policies that led to the persecution of various groups, including Jews, Romani people, and political dissidents. During this era, Germany initiated World War II by invading Poland in 1939, leading to widespread conflict across Europe. The regime's aggressive expansionism and genocidal policies resulted in the deaths of millions, including six million Jews in the Holocaust. The Nazi era ended with Germany's defeat in 1945, leading to significant political and social changes in Europe.