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The conflict began with Serbia and Austria-Hungary, Serbia was trying to get more territory for their nation.Kaiser Wilhelm ll he was the ruler of Germany and wanted to be on top of all countries o Europe economically and military he did not want Russia and Great Britain to have more power than he had. -
When Kaiser Wilhelm ll allied with Austria-Hungary he knew that if Austria-Hungary went to war with Serbia that Russia would be dragged into it and would bring all is alice. -
World War 1 the Central power that had Germany, Austria-Hungary, Italy, the Ottoman Empire and Bulgaria that fraught against the Allied powers: France, Britain, Russia, Portugal, Japan and the USA. -
Russia and France mobilized troops, Germany declare war to Russia and France, Germany also started to mobilize troops.
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Austria-Hungary declares war on Serbia. Austria-Hungary invades Serbia. -
German fired more than 150 tons of lethal chlorine gas against 2 french colonial divisions at Ypres and Belgium
