The "Falanga" officially the National-Radical Movement (Polish: Ruch Narodowo-Radykalny or RN-R), was an illegal political organization formed as a result of a split by Boleslaw Piasecki in the National Radical Camp.

Ideological differences were already evident before the establishment of the ONR, at the beginning of 1934, then they intensified (extremists wanted armed struggle and radicalization of the social program), to explode with full force after Piasecki was released from the camp in Bereza Kartuska.

Outside Warsaw, the Falanga gained some influence in Podlasie, Polesie, Silesia, Kielce, Poznań, Kraków, Lwów, Wilno, Gdynia, Łódz, Częstochowa, Zamość, Łuck, Kalisz and Równe.

Koc called for the creation of a one-party state and hoped to use the youth movement to ensure this, although his pronouncements upset many pro-government moderates.

As such, Koc was removed from the leadership of the OZN in 1938 and replaced by General Stanisław Skwarczyński who quickly severed any ties to the RNR "Falanga".

A severe blow was the break with the Sanation, while the earlier rapprochement with the regime had compromised the idea of the National Breakthrough in the eyes of many supporters.

Although this may seem excessive psychologizing, it shows the incompatibility of the idea of leadership with Polish conditions: the "soldiers of the Breakthrough" rebelled against being reduced to the role of powerless tools.

As a result, after the split in OZN, Włodzimierz Pietrzak, Marian Reutt, Kazimierz Hałaburda and Władysław Hackiewicz remained, while Wojciech Wasiutyński, Bolesław Świderski, Witold Staniszkis and Stanisław Cimoszyński founded the dissident journal "Wielka Polska" in January 1939.

The disintegration of local organizations was progressing, which was admitted in the Internal Communique of the Department of Ideological Action, writing that the RNR "is in an exceptionally difficult position".

It is not known whether RNR members, in addition to armbands with the "falanga," used other organizational badges - iconographic documents confirm that popular among them were classic swords with a sash without initials.