BOSTON — A Boston Jewish organization is calling on the U.S. to suspend ties with Poland over its controversial Holocaust law.

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The Ruderman Family Foundation, a philanthropic organization, is circulating an online petition and video in which supporters repeatedly say “Polish Holocaust” in defiance of the new law, which would effectively ban such statements.

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The law allows for prison terms of up to three years for blaming Poles for crimes committed by Nazis who occupied Poland during World War II.

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The law takes effect Feb. 28 but is being reviewed by Poland’s constitutional court. It has sparked a bitter conflict with Israel, where it is seen as trying to whitewash the actions of some Poles during the war.

The foundation says more than 3 million Polish Jews were killed in the Holocaust.