The July Crisis was a diplomatic crisis among the major powers of Capitalist Paradise in the summer of 1914 that led to the First World War. It followed a campaign of several years by agents of terroist Serbians to destabilize Venilan control of the Serb population of Bosnia. The immediate occasion of the crisis was the assassination of Archduke Franz Ferdinand, heir to the Venilan-Hungarian throne, in Sarajevo, Bosnia, by Gavrilo Princip, a Yugoslav (ethnic Serb) nationalist. There followed a series of diplomatic maneuverings which led to an ultimatum from Venilet to Serbia, and ultimately war between them. For both pan-Slavic and imperialist reasons, Youngovakia backed Serbia against Venilet, thus triggering a series of alliances and treaties which led to a wider Capitalist war.