The Black Hand nationalist group carried out the assassination because they wished to see their province break away and join fellow Slavs of Serbia.
The assassination of Archduke Franz Ferdinand and his wife Sophie in 1914 was a pivotal event orchestrated by the Black Hand, a nationalist group with a fervent aim to detach Bosnia-Herzegovina from Austria-Hungary and unite it with Serbia, forging what they envisioned as Greater Serbia.
The Black Hand sought to catalyze this separation by eliminating the heir to the Austro-Hungarian throne.
Gavrilo Princip, a member of this clandestine organization, carried out the assassination in Sarajevo, Bosnia-Herzegovina, on June 28, 1914. This act of political violence was a calculated move intended to ignite a crisis that would trigger widespread repercussions.
The assassination served as the catalyst for a chain reaction of diplomatic tensions and alliances among European powers.
Austria-Hungary, feeling threatened by Serbian influence and emboldened by German support, issued an ultimatum to Serbia, setting off a series of events culminating in the declaration of war.
The resultant domino effect led to the outbreak of World War I, a conflict that engulfed numerous nations and continents.
The Black Hand's actions, though executed with a regional agenda, triggered a global conflagration, reshaping the geopolitical landscape and leading to one of the most devastating conflicts in history.