Political radicalism as a threat to the reborn Republic of Poland. The interwar period in Poland was characterised
by the occurrence of real threats to the internal security of the state, the source of which was radicalism and political extremism.
It was both left-wing and right-wing radicalism. We should mention here communism supported by Bolshevik Russia, Ukrainian
nationalism supported by unfavourable countries such as Germany or Czechoslovakia, and Polish right-wing radicals who
sought to change the political system of the country but not to annihilate it. All these political trends may have contributed to the
destabilization of the Second Republic, but reborn Poland managed to create an appropriate internal security system, which
included the Political Police, and on the other hand, the Polish society, as the history of the Second Republic shows, was not
seduced by the political extremes.