We will break the deadlock we have on this issue, says Tusk at a press conference in Warsaw, side by side with Ukraine's president.
Poland has been the EU's chair country since the turn of the year. This means that the Polish government will host when EU countries' leaders gather in the Council of Ministers during the coming half-year, giving them a bit more influence over the agenda.
And we will work together with Ukraine and our European partners to speed up the accession process, says Donald Tusk.
Volodymyr Zelensky's visit was announced earlier on Wednesday, when he was already in place in Poland.
Poland's Prime Minister Tusk also hopes to get the rest of the EU to approve support to Ukraine through the EU fund EPF, something that has long been blocked by Hungary.
Hungary is currently also blocking an extension of the EU's special economic sanctions against Russia. If no agreement can be reached before the end of the month, the sanctions risk falling completely.