Post-war backlash refers to the societal and political reactions that emerged in Europe following the end of World War I and World War II, characterized by a strong resistance to the changes brought about by the war. This period saw a rise in nationalism, social conservatism, and skepticism towards the ideologies that had dominated before and during the conflicts. The backlash often manifested in opposition to social reforms, labor movements, and the political left, reflecting a desire to return to stability and traditional values in a rapidly changing world.