In 1929 a group of the Argentine socialist party launched a process of political and ideological radicalization which ended in a party division towards 1937 and in the establishment of the Socialist Workers Party. This article aims to approach some aspects involving the international context present in this leftist group’s editorial enterprises, in order to contribute to the comprehension of a wider scenario: the political cultures in Argentina during those years, in the understanding that the partisan press was a key gear in such phenomenon. Those papers related to the advance of fascism, as well as the course of the Spanish socialism, are specifically analyzed, in the understanding that the positioning on the so called international question allows us to further analyze the motives, trajectories and political identity building –among other questions- of the dissident wing.In 1929 a group of the Argentine socialist party launched a process of political and ideological radicalization which ended in a party division towards 1937 and in the establishment of the Socialist Workers Party. This article aims to approach some aspects involving the international context present in this leftist group’s editorial enterprises, in order to contribute to the comprehension of a wider scenario: the political cultures in Argentina during those years, in the understanding that the partisan press was a key gear in such phenomenon. Those papers related to the advance of fascism, as well as the course of the Spanish socialism, are specifically analyzed, in the understanding that the positioning on the so called international question allows us to further analyze the motives, trajectories and political identity building –among other questions- of the dissident wing.