First World War

(You can be any country, the war lasts until 1917, then everything will go differently.)
In 1914, the war between Austria-Hungary and Serbia began. The German Empire sided with Austria-Hungary, and the Russian Empire sided with Serbia. The war began, and the entire Entente alliance began to help Serbia. The war began, and the immediate pretext was the assassination of Archduke Franz Ferdinand in Sarajevo on June 28, 1914, by a Serbian nationalist.