The Author analyzes the use of political violence and the legacy historical in Poland before and after
the First World War. In particular, he focuses on the activities of the main political parties and the use
of violence against the Jewish minority. The main causes of the continued political use of violence are
individuated in the weakness of the international community at the time and the growing nationalism
in the states born from the collapse of the central empires. In the opinion of the author the inability of
the winners of the war to solve the problem of minorities and the pending issue of borders of the new
states as well as the spread fear of communism, expressed by frequent strikes and revolts of workers,
have contributed to nurturing this violence. In Poland, reborn after the war, the main political parties
used political violence to achieve their goals and, thus, created the conditions for the assassination of
the first president of the Polish Republic.