The course of the war is mainly the battle between the allies and the allies. The allies are the German Empire and Austria-Hungary, and the Ottoman Empire and Bulgaria that support them. On the other hand, Britain, France and Russia, as allies, and Serbia, Belgium, Italy, the United States and other countries that support them.
Italy, originally an ally, joined the Allies to fight. In order to expand its influence in East Asia and invade China, Japan declared war on Germany in 19 14 under the pretext of the anglo-japanese alliance concluded in 1902, and quickly occupied Germany's sphere of influence in Shandong, China. In the end, Germany and Austria surrendered and the First World War ended.
Extended data:
World War I was the first global war in human history. According to documents, 32 countries on five continents have been involved in wars. About 74 million people serve in the army. In this four-year war, 9.44 million soldiers and civilians died. Among them, the death toll of the victorious country was 5.4 million, and the death toll of the defeated country was 4 million.
In the rear of the belligerent countries, the number of people who died of hunger and disease was about100000, the number of wounded and sick officers was 2 10/00000, and 6.5 million people were captured. The central areas of Central Europe, Eastern Europe, Southeast Europe, France and northern Belgium were destroyed. The losses caused by war damage are estimated at $33 billion, equivalent to one tenth of the national income of all European countries before the war.
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