“In my view, reparations payments are not a topic that's been dealt with,” Andrzej Duda told the Sunday edition of Germany's biggest-selling newspaper Bild.
Citing two reports, one from former president Lech Kaczynski and another from the Polish parliament, Duda said that “the damage caused during the war was never compensated for”.
He pointed especially to the capital Warsaw, which was “razed to the ground” by German troops. “It's a question of truth and responsibility,” Duda said.
Berlin has often rejected claims for war reparations in the past, saying Poland officially renounced such demands in August 1953.
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But the conservative party that holds power in Warsaw argues that their country was forced to sign the document by the Soviet Union. On Friday, the two governments will hold a joint meeting in the Polish capital.
Chancellor Angela Merkel and several of her ministers will meet Polish counterpart Mateusz Morawiecki and his cabinet.
In private, German diplomats suggest that Poland understands there is little chance of securing cash reparations. Instead, Warsaw hopes to strong-arm Berlin into backing it in debates over the European Union budget or Brussels' threats to punish Poland for failing to uphold the rule of law.