The national rejoicings which "the avenging of Kosovo" evoked among the Croats, Serbs, and Slovenes of Austria-Hungary were accompanied by lively protests against the bare idea of an Austro-Serbian war, which, so far as the Southern Slavs on both sides of the frontier were concerned, would have been a civil war in the most literal sense of the word (and this civil war, it must be remembered, is now actually being waged). The politicians, however, though well-nigh unanimous in their enthusiasm for the cause of the Balkan allies, could not at one breath throw off the habits of a lifetime. Petty jealousies still divided them and were skilfully played upon by the Magyar Government. The strain of five years of opposition and persecution had produced its effect upon the Coalition leaders and rendered them all too prone to further concessions. But the younger generation had been profoundly affected by the Croatian dictatorship and the Balkan wars; at an age when our youth think of nothing but cricket and football, the students and even the schoolboys of Croatia, Dalmatia, and Bosnia became engrossed in political speculation, brooded over the wrongs of their disunited race, and dreamt of Serbia as the new Piedmont of the Balkans. To all alike even the most advanced politician seemed no better than an old fogey, and it is no exaggeration to assert that the existing parties had lost all hold upon the overwhelming majority of those who in ten years' time will represent the manhood and the intellect of the race. The widespread nature of the movement may be illustrated by the school strike of the spring of 1912, during which every boy and girl above the age of fourteen in most of the primary and secondary schools of Croatia, Dalmatia, and Bosnia played truant as a protest against the misgovernment of Croatia. On that occasion a crowd of 5000 school children paraded the streets of Agram shouting "Down with Cuvaj" (the Ban or Governor of Croatia), and cheering the police when they tried to intervene!
As in all such movements, the views of individuals varied in intensity: some merely gave a theoretical adherence to the ideals of Mazzini or of Mill, others swallowed the Nihilist doctrine of Bakunin and dreamt of revolution, ushered in by terrorist propaganda. Out of this milieu came the two young assassins who murdered the Archduke Francis Ferdinand.