The collapse of Austro-Hungarian forces in the field has convinced the various peoples of the Empire that their future lies in independence. National committees have appeared across Austria-Hungary and are taking over powers that would previously have belonged to officials appointed from Vienna or Budapest. The local civil administrations are transferring their allegiance to these new bodies, leading in many cases to a surprisingly seamless transition. It is as though the Empire is just fading away.
In Zagreb a national committee of Croats has taken over the local administration. Now it declares Croatia part of a new united nation of Serbs, Croats and Slovenes, to be colloquially known as Yugoslavia. With Serbian and Allied forces advancing up the Balkans the Austro-Hungarian authorities are in no position to block this new state’s emergence. Meanwhile in Hungary the situation is more tense. A power struggle has emerged in Budapest between the national committee of Károlyi and forces loyal to the Habsburg crown. Demonstrators have been killed by the security forces, but the tide is flowing towards the nationalists. Nationalism has made inroads into the city’s garrison and now Hungarian army officers are themselves joining the revolution. The city’s telephone exchange is taken over by rebel troops, leaving Lukachich, Budapest’s loyalist commander, isolated and unable to exercise any control over events.
Revolutionary crowds & Mihályi Károlyi (The Orange Files: The First Hungarian Republic)