The Vuelta a España is an annual multiple stage bicycle race primarily held in Spain, while also occasionally making passes through nearby countries. Inspired by the success of the Giro d'Italia and the Tour de France, the race was first organized in 1935. The race was prevented from being run by the Spanish Civil War and World War II in the early years of its existence; however, the race has been held annually since 1955. As the Vuelta gained prestige and popularity the race was lengthened and its reach began to extend all around the globe. Since 1979, the event has been staged and managed by Unipublic, until in 2014, when Amaury Sport Organisation acquired control, with both working together. The peloton expanded from a primarily Spanish participation; riders from all over the world participate in the race each year. The Vuelta is a UCI World Tour event, which means that the teams that compete in the race are mostly UCI ProTeams, with the exception of the wild card teams that the organizers can invite. Along with the Tour de France and Giro d'Italia, the Vuelta makes up cycling's prestigious, three week-long Grand Tours.