 In the following season and during the war, a separate Serbian and Croatian leagues were played.At the end of the war the new authorities formed, disbanded and renamed numerous clubs, and the first season, the 1945 Yugoslav Football Tournament, was played by representative teams, instead of clubs, however, since the 1946–47, the old league model played between the top national clubs was restored.The Yugoslav First League was played without interruptions, being the top league of the Socialist Yugoslavia.