The document provides an overview of the rise of fascism in Europe in the early 20th century and the start of World War 2. It discusses how the economic turmoil of the Great Depression led to rising political instability across Europe. Fascist regimes took hold in Germany under Hitler and in Italy under Mussolini in the 1930s. Both leaders aggressively expanded their territories, with Germany invading Poland in 1939, marking the start of World War 2. Germany made swift initial gains across Europe using new mobile warfare tactics like blitzkrieg. By 1940 France had fallen and Britain was fighting off the German air force in the Battle of Britain. In 1941 Germany invaded the Soviet Union but was stopped by the Russian winter.