This paper covers the regional peculiarities of the transformation that took place in the Central Europe after the First World War and examines how the regime change took place in three towns in the northern periphery of the central part of the Hungarian-speaking area, Losonc (Lučenec), Rimaszombat (Rimavská Sobota) and Rozsnyó (Rožňava). In the first half of the study, the author presents how the events of the Aster Revolution led by Mihály Károlyi happened in these towns. He shows the formation of the Hungarian National Councils and also figures the events and causes of the riots in the Nógrád (Novohrad) and Gömör (Gemer) area. The second part of the paper depicts the occupation of the examined region and towns by the Czechoslovak army. The author points out that the peaceful, non-violent course of the occupation is for the most part owing to the fact that the local Hungarian population did not see the Czechoslovak troops as invading forces but as temporary law enforcement units.