How did the July crisis cause ww1?

Answer 1

The July Crisis of 1914 was triggered by the assassination of Archduke Franz Ferdinand of Austria-Hungary. Following this event, a series of diplomatic failures and escalating military mobilizations ensued, as Austria-Hungary sought to assert its authority over Serbia, which was backed by Russia. The tangled system of alliances in Europe caused the conflict to rapidly escalate, with Germany supporting Austria-Hungary and Russia mobilizing in defense of Serbia. This chain reaction ultimately led to the outbreak of World War I, as nations declared war in rapid succession.