Warsaw, 18 October 2021 (dpa/MIA) - Polish Prime Minister Mateusz Morawiecki wrote in a letter to other EU leaders that the 27-member union could soon find itself no longer a federation of free states. "I mean the gradual transformation of the EU into a subject that is no longer the federation of free, equal and sovereign states, but a centrally governed organism run by institutions without the democratic control of Europe's citizens," Morawiecki wrote in a letter to the heads of state and government of EU members. If this development is not stopped, it could affect one country today and others tomorrow, he said in the letter published by the government in Warsaw on Monday. His vision of the EU's potential future could be on display at a debate in the European Parliament in Strasbourg on Tuesday, when he is also expected to defend Warsaw's controversial judicial reforms and rule of law issues. The debate is likely to include the recent ruling by Poland's Constitutional Tribunal that said some EU laws are incompatible with the Polish constitution. European Commission President Ursula von der Leyen is also expected to attend the debate. She has already made it clear that she considers the tribunal's ruling highly problematic. Poland's national conservative Law and Justice party (PiS) has for years led the restructuring the country's judiciary, amid allegations that judges have been pressured politically. The European Commission has opened several treaty infringement procedures and submitted cases to the European Court of Justice (ECJ). In his letter, Morawiecki went on to say that Poland was fully complying with European law and that the ECJ rulings would be respected as in any other member state. However, Poland had the right to demand that EU institutions take action where it was their competence, and not in other areas.