World War I (abbreviated as World War I, August 1914-November 1918) was a world war that mainly occurred in Europe but affected the whole world. At that time, most countries in the world were involved in this war and was one of the most destructive wars in European history. The war process was mainly a battle between the Allies and the Allies. China declared war on Germany and Austria on August 14, 1917. World War I ended with the victory of the Allies, and led to the collapse of the four empires of the Allies in western Asia and southeastern Europe, the Ottoman Empire in northern Africa, the German Empire in central Europe, the Russian Empire in eastern Europe and northern Asia, and the Austro-Hungarian Empire in central Europe, and the establishment of the international alliance.
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