The chairman of the Polish ruling party PiS, Jaroslaw Kaczynski, dampens expectations that claims for damages against Germany can be enforced quickly.
This could take "an entire generation," said Kaczynski on Friday in Warsaw.
A long-prepared report on the damage suffered in World War II and the demands derived from it will be presented in part on September 1st.
According to the Polish agency PAP, Kaczynski confirmed this on Friday.
Kaczynski said he also spoke to CDU leader Friedrich Merz about Poland's demand for compensation during his visit to Warsaw this week.
As an experienced politician and lawyer, he replied that no German government would agree to this at the moment.
"I answered that the story is dynamic." Poland raises the question because it has both a material and a moral dimension.
Maybe he won't see the result himself, said the seventy-three-year-old.
"But once we've started, we mustn't give up." Getting through reparation payments from Germany is considered a very personal matter for Kaczynski in Warsaw.
The demand for damages also unites the national-conservative camp in Poland.
It could become an important campaign issue for the PiS, which is fighting for a majority in the 2023 general election.