“Poland and Europe stand by your side. We will definitely not leave you, we will support Ukraine until complete victory over Russia,” Morawiecki said during a visit to Kyiv, standing next to Ukrainian president Volodymyr Zelensky.

Warsaw’s commitment to its neighbour has been instrumental in persuading European allies to donate heavy weapons to Ukraine, including tanks, a move opposed by several governments, including Berlin, until recently.

Poland said last month it aimed to get training time for Ukrainian soldiers on Leopard 2 tanks down to five weeks.

Morawiecki also called for a stronger new package of European Union sanctions against Russia.

The bloc is currently discussing a 10th round of sanctions.

“As for the 10th sanction package, we are not happy because it is too soft, too weak … I am in contact with our team and we are pushing our allies to make this package as extensive as possible,” he said.