 The mutiny failed, and 44 mutineers were executed.Following World War I, Kragujevac became a part of the Kingdom of Serbs, Croats, and Slovenes, later renamed the Kingdom of Yugoslavia.In the period before the Second World War, the city continued its cultural and economic development with the founding of the Gundulić Theatre and the Kragujevac Academic Theatre as well as a number of new factories.Following the Nazi invasion of Yugoslavia, the city came under direct Nazi occupation.