Austria-Hungary fell apart in 1918 and the island became part of Czechoslovakia, which the Treaty of Trianon confirmed in 1920. In the new state's records the village was written Beš. Almost everyone here spoke Hungarian, and the new border now ran along the Danube a few kilometres to the south, cutting the island off from the towns it had traded with for centuries. A Czechoslovak land reform redistributed the great estates. The farming did not change. The flags, the schools and the paperwork did.Rakúsko-Uhorsko sa v roku 1918 rozpadlo a ostrov pripadol Československu, čo v roku 1920 potvrdila trianonská zmluva. V papieroch nového štátu sa dedina písala ako Beš. Hovorilo sa tu takmer výlučne po maďarsky a nová hranica viedla po Dunaji pár kilometrov na juh — odrezala ostrov od miest, s ktorými stáročia obchodoval. Československá pozemková reforma rozdelila veľké panstvá. Gazdovanie sa nezmenilo. Zmenili sa vlajky, školy a úradné papiere.
