ONE OF THE LEADING political groups in the Second Polish Republic, the National Camp, showed great interest in the problem of mutual relations between Poland and Lithuania. The National Democracy thought that the project of creating a common Polish-Lithuanian country meant the failure of the national programme. „Żeligowski’s rebellion” and the creation of Central Lithuania on October 12, 1920, were evaluated negatively. The National Democracy was standing against the federal plans of Józef Piłsudski but it made an exception for the Lithuanian case. The National Camp was of the opinion that the traditional union between Poland and Lithuania should be rebuilt but only in the context of the incorporation of the area of Vilnius into Poland and the acknowledgement of the Polish character of Vilnius.