“Not a thaw in relations, but a breakthrough - I would describe the results of the first day of my visit to Poland,” Zelensky wrote on Facebook.

The Ukrainian president discussed with his Polish counterpart Andrzej Duda the past of Ukrainian-Polish relations. The parties will restore the working group "to nullify mutual claims."

“We agreed to solve the problem of cargo transportation across the Ukrainian-Polish border. In the energy sector, we discussed cooperation in the format of Washington - Warsaw - Kiev, ”Zelensky said.

Earlier, Zelensky admitted that the most difficult moment in his presidency was the second conversation with Russian President Vladimir Putin after the death of four Ukrainian troops in the Donbass.