Black Hand
Serbia
Unification or Death, popularly known as the Black Hand, was a secret military society formed in 1901 by officers in the Army of the Kingdom of Serbia. Wikipedia
Founded: August 1901
Founder: Dragutin Dimitrijević
Active regions: Balkan Peninsula
Ideology: Yugoslavism; Greater Serbia; Serbian nationalism
Notable attacks: Killing of Alexander I; Assassination of Archduke Franz Ferdinand