World War II was the first war in which more civilians than soldiers were killed, and it saw the Holocaust as the first systematic genocide in modern history.
The immediate cause of the conflict was Germany's demand for the return of Danzig and part of the Polish 'corridor' granted to Poland from German territory in the 1919 Treaty of Versailles. The war that broke out in 1939 was a war for European balance. The mediocre people living in Europe at the time suffered the most from the war. The war also had a huge impact on society, reducing a significant portion of the German population, damaging crops, spreading disease and destroying the German economy from large to small. Technological, cultural and social development has radically changed the nature of war since ancient times, the development of military tactics and the role of cavalry and artillery (see Military history). Medieval warfare is the European war of the Middle Ages. Result: German leaders of the Peace of Westphalia can choose Calvinism and the victorious countries get land. Spanish Wars of Religion (Dutch Revolt).However, the war itself was fueled by nationalism, alliances and the fear of encircling Germany. This first action led to the participation of Germany, Russia, Serbia and Austria-Hungary. What were the causes of the European war? World War I began in Europe in 1914 after the ■■■■■■■■■■■■■ of the Archduke of Austria-Hungary Franz Ferdinand.
