What was the result of the assassination of archduke Ferdinand in sarajevo in 1914?

The assassination of Archduke Franz Ferdinand of Austria in Sarajevo on June 28, 1914, set off a chain reaction of events that ultimately led to the outbreak of World War I. It heightened tensions between Austria-Hungary and Serbia, leading Austria-Hungary to issue an ultimatum to Serbia. The subsequent declaration of war by Austria-Hungary on July 28, 1914, triggered a series of alliances and conflicts, drawing multiple nations into a large-scale war that lasted until 1918. This conflict fundamentally reshaped global politics and led to significant changes in the geopolitical landscape of Europe.