The world war, also known as the First World War or the Great War, was a global conflict that lasted from 1914 to 1918. It involved the major powers of the world, including the Allied Powers (led by the United Kingdom, France, and Russia) and the Central Powers (led by Germany, Austria-Hungary, and the Ottoman Empire). The war was sparked by the assassination of Archduke Franz Ferdinand of Austria-Hungary in Sarajevo on June 28, 1914, by a Serbian nationalist. This event triggered a chain reaction of alliances and declarations of war, leading to a full-scale conflict that engulfed Europe and eventually spread to other parts of the world.

The war saw the use of new military technologies and tactics, including trench warfare, chemical weapons, and DW News Today tanks. It also resulted in unprecedented casualties, with an estimated 10 million military deaths and 7 million civilian deaths. The war had a profound impact on the global political and economic landscape. The Treaty of Versailles, signed in 1919, ended the war and imposed harsh penalties on Germany, including massive reparations and the loss of territory.

This contributed to the rise of nationalism and extremism in Germany, which ultimately led to the outbreak of World War II. The war also marked the end of the old world order and the beginning of a new era of international relations. The League of Nations, established in 1920, was intended to promote peace and cooperation among nations, but ultimately failed to prevent the outbreak of another world war.