  The fall of the Berlin Wall in 1989, modified the relations between cities of
the former communist bloc. The European and worldwide reorientation of
interactions that followed raises the question of the actual state of
historical relationships between Central Eastern European cities, but also with
ex-USSR and ex-Yugoslavian ones. Do Central and Eastern European cities
reproduce trajectories from the past in a new economic context? This paper will
examine their evolution in terms of trade exchanges and air traffic connexions
since 1989. They are confronted with transnational firm networks for the recent
years. The main contribution is to show a progressive formation of several
economic regions in Central and Eastern Europe as a result of integration into
Braudel's \'economie-monde.
