World war 1 & its background and impact

World War 1, spanning from 1914 to 1918, originated from complex alliances, nationalism, and territorial disputes among European powers. The assassination of Archduke Franz Ferdinand of Austria-Hungary triggered a chain reaction of declarations of war. Trench warfare, new weaponry, and high casualties marked the conflict. The war ended with the Treaty of Versailles, reshaping borders and imposing heavy reparations on Germany. The war led to the collapse of empires, emergence of new nations, and social changes. The League of Nations was established to prevent future conflicts, but the treaty's harsh terms contributed to tensions that eventually led to World War 2.