The latest issue of the National Security and Defence journal based on the results of the project “Party System of Ukraine before and after Maidan: changes, development, trends, public demands” comprehensively analyses Ukraine's party system, conditions that preceded the Maidan events, the Russia’s aggression, and main changes that took place after the Revolution of Dignity. The issue also provides expert recommendations to political parties to overcome social-political problems caused by internal political transformation within the parties and in the country as a whole.