[Translate to Czech:] The crisis of capitalism has triggered effects all over Europe and in all social fields. This creates new conditions for the European Left. The new challenges the EL is facing concern both the national agendas and its acting on the European level. In this research programme we try to present the new challenges in detail both regarding political actions as well as the forms of organisation resulting from the emergence of new social actors. In doing so, exemplary cases from different countries are analysed, and strategic options are presented in terms of theory.