“They are a highly sensitive subject in Poland, which outlawed suggestions of complicity in Nazi war crimes in 2018. “
There were both Polish institutions and individuals who were complicit in horrible war crimes, especially elements of the Holocaust.
Enough that the new government saw fit to make it illegal to suggest otherwise.
Not unlike Turkey and the Armenians.
What Polish institutions? There were no Polish institutions during the war.
Individuals? Yes, but that could be said for EVERY occupied country during the war.
Because there was a lot of crap said about Poland's role. First of all, NOT ONE SINGLE POLE served as a guard at the Death Camps, there were plenty of Ukrainians and Lithuanians who did.
Poland was the ONLY occupied country, where assisting a Jew in any way, resulted in an automatic death sentence for that person and their entire family.
And yet regularly you heard the term "Polish Death Camps".