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Great Britain, honoring a treaty guaranteeing Belgium’s neutrality, declares war on Germany

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Great Britain, honoring a treaty guaranteeing Belgium’s neutrality, declares war on Germany

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Initially, the British weren’t going to get themselves involved in the war at all until the Germans ignored the policy of neutrality that the Belgians had. Because the British had to honor the Belgian treaty of neutrality, the British came to Belgium to fight Germany on the Belgian’s behalf. August 4th, 1914

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German army invades Belgium on its way to France.

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German army invades Belgium on its way to France.

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Whilst on its way to France, Germany invaded Belgium. Because they didn’t want to have to cross the French borders and have to  deal with the French fortifications, they instead crossed through in Belgium. The Belgians didn’t let them in and so they forcibly entered, meaning an invasion into Belgium. August 4th, 1914.

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Germany responds by declaring war on France.

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Germany responds by declaring war on France.

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Because France was insistent on backing its ally Russia, it made good on its alliance and prepared to help Germany. Since the Germans had forewarned the French, Germany decided to officially declare war on France. August 3rd, 1914

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Germany demands that France stay neutral, but France backs it ally, Russia.

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Germany demands that France stay neutral, but France backs it ally, Russia.

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France wanted to get even with the Germans because of the outcome of the Franco-Prussian War in 1870 in which they lost and had to pay reparations to them. The French refused to stay neutral in the war against Russia and that made it so that the Germans had no choice but to also declare war on France as well. July 31st, 1914

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The Russians were allies of the Serbians due to their belief in pan-Slavism. They wanted Austria-Hungary to make the demands less strict on the Serbians but AH refused. When news of this was received, Russia began to mobilize but it was said to only be a precaution. Once the Germans learned of this they decided to declare war on the Russians as well, seeing as they were allies of Austria-Hungary August 1st, 1914

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Russian leaders order mobilization of troops and move them toward the Austrian-border. Tzar Nicolas II tells Kaiser Wilhelm II that the moves are only a precaution.

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Russian leaders order mobilization of troops and move them toward the Austrian-border. Tzar Nicolas II tells Kaiser Wilhelm II that the moves are only a precaution.

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When the Russians heard news of the impending war, they mobilized their troops to the Austrian border. Russia, being an ally of Serbia, decided to mobilize to the Austrian border. This was supposed to only be a precaution incase war was to ensue. The Germans warned the Russians to demobilize which led to other declarations of war happening when they didn’t. July 30th, 1914

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Austria rejects Serbia’s offer and declares war on Serbia

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Austria rejects Serbia’s offer and declares war on Serbia

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Three days after Serbia declined the ultimatum, Austria-Hungary declared war on Serbia. This decree was officially made on July 28th, 1914, a month after the assassination of Archduke Franz Ferdinand.

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Serbia accepts most but not all of Austria’s demands.

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Serbia accepts most but not all of Austria’s demands.

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Serbia accepted every demand but one, which was the request for Austria to conduct an internal inquiry of the assassination. This happened on July 25th, 1914.

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Austria presents Serbia with an ultimatum, backed by Germany.

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Austria presents Serbia with an ultimatum, backed by Germany.

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In response to the assassination of the Archduke, the Austro-Hungarian government presents an ultimatum to the leaders in Serbia as reparation for what happened to the heir of the Austro-Hungarian Throne. This was actioned on July 23th, 1914.

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Archduke Ferdinand is assassinated while visiting Sarajevo amid reports of anti-Austrian sentiment and unrest.

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Archduke Ferdinand is assassinated while visiting Sarajevo amid reports of anti-Austrian sentiment and unrest.

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The members of the Serbian Nationalist-Terrorist Group, the Black Hand orchestrated the assassination of the Archduke and his wife due to an increase in Serbian nationalism and the hopes in creating a Pan-Slavic nation. Garvilo Princip dealt the final blow on June 28th, 1914.