Explain why the movement can be described as fascist.

I assume you are referring to the Nazi control of Germany, as you have placed your questions in the category for the novel, The Boy in the Striped Pajamas. Nazi Germany embraced nationalism and the regime's authoritarian government. Representative, democratic government is rejected in favor of authoritarianism and an authoritarian leader (Hitler). Hitler's ideology devoted itself to the advancement of the German people, and in turn, was determined to define its community by excluding all minorites and focusing on the "cleansing" of the national community. Facism also devotes itself to expansion, which led to the invasion of neighboring countries.