By 1914, the group had hundreds of members, many of them
Serbian Army officers. The goal of
uniting Serb-inhabited territories was implemented by training guerilla fighters and saboteurs. The Black Hand was organized at the grassroots level in cells of three to five members, supervised by district committees and by a Central Committee in Belgrade, whose ten-member executive committee was primarily led by Colonel
Dragutin Dimitrijević "Apis". To ensure secrecy, members rarely knew much more than the other members of their own cell and one superior above them. New members swore the oath: The Black Hand took over the terrorist actions of
Narodna Odbrana and deliberately worked to obscure any distinctions between the two groups, trading on the prestige and network of the older organization. Black Hand members held important army and government positions. The group held influence over government appointments and policies. The Serbian government was fairly well-informed of Black Hand activities. Friendly relations had fairly well cooled by 1914. The Black Hand was displeased with Prime Minister
Nikola Pašić and thought that he did not act aggressively enough for the Pan-Serb cause. The Black Hand engaged in a bitter power struggle over several issues, such as who would control territories that Serbia had annexed during the
Balkan Wars. By then, disagreeing with the Black Hand was dangerous, as political murder was one of its tools. In 1914, Apis allegedly decided that Archduke Franz Ferdinand, the heir-apparent of Austria, should be assassinated, as he was trying to pacify the Serbians, which would prevent a revolution if he was successful. Towards that end, three young Bosnian Serbs were allegedly recruited to kill the Archduke. They were certainly trained in bomb throwing and marksmanship by current and former members of the Serbian military.
Gavrilo Princip,
Nedeljko Čabrinović, and
Trifko Grabež were smuggled across the border back into Bosnia by a chain of contacts similar to the
Underground Railroad. The decision to kill the Archduke was initiated by Apis and not sanctioned by the full Executive Committee (if Apis was involved at all, a question that remains in dispute). ==Legacy==