Black Hand (Serbia) Balkan Wars. By this point, disagreeing with the Black Hand was dangerous, as political murder was one of their tools. It was also in 1914 that Apis allegedly decided that Archduke Franz Ferdinand, the heir-apparent of Austria, should be assassinated, as he was trying to pacify the Serbians, and if this happened then a revolution would never occur. Towards that end it is claimed that three young Bosnian Serbs were recruited to kill the Archduke. They were definitely trained in bomb throwing and marksmanship by current and former members of the Serbian military. Gavrilo Princip, Nedeljko Čabrinović and Trifko Grabež
.380 ACP 42; all three being designed to be lighter than blowback operated .380 ACP weapons. There have also been some relatively diminutive (blowback-operated) submachine guns, such as the Ingram MAC-11 and the Czech vz. 83. The .380 ACP has experienced very widespread use in the years since its introduction (1908 United States, 1912 Europe). In 1914, it was used by Gavrilo Princip to assassinate Archduke Franz Ferdinand and his wife Sophia, the event which is credited with starting World War I. It was later adopted by the armies of at least five European nations as their standard pistol cartridge before World