WWI timeline
mise à jour avec succès 17 janv. 2020
Timeline for SS
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Created bySMS2020 NatalieS
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Archduke Francis Ferdinand was assassinatedGermany said that they would lend Austria-Hungary their full military support in a war with SerbiaAustria-Hungary issued an ultimatum to SerbiaAustria-Hungary broke off relations with Serbia, and both have begun mobilizing their armies.Austria-Hungary declared war on SerbiaRussia has decided to support SerbiaGermany declared war on RussiaGermany issued an ultimatum to BelgiumGermany marched into BelgiumEurope declared war on GermanyPériodes
WWI events
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