Ljubomir S. Jovanović, known as Ljuba Čupa, was a Serbian guerrilla fighter, member of the Black Hand, soldier in the Balkan Wars, and journalist. He advocated for a united state of South Slavs under

Unification or Death, popularly known as the Black Hand, was a secret military society formed in May 1911 by officers in the Army of the Kingdom of Serbia. It was famous for its alleged involvement in