When Russia mobilises her army to support Serbia?

When Russia mobilized its army to support Serbia in July 1914, it was a response to Austria-Hungary's declaration of war on Serbia following the assassination of Archduke Franz Ferdinand. This decision was rooted in Russia's commitment to Slavic solidarity and its desire to assert its influence in the Balkans. The mobilization escalated tensions in Europe, contributing to the outbreak of World War I as alliances between major powers came into play. Ultimately, this action marked a significant turning point in the lead-up to the war.