In a charged video address to Germany’s parliament, Ukrainian President Volodymyr Zelensky said that the phrase “never again,” a phrase from the post-Holocaust era, now “doesn’t mean anything” as Russia continues to attack Ukraine.

“‘Never again’ has been the slogan but now it looks like it doesn’t mean anything, this slogan,” he said. “The aggressor is trying to destroy everything.”

Zelensky referred in his speech Thursday to the recent Russian strike near the Holocaust memorial at Babyn Yar, the site of German mass killings of Jews near Kyiv in 1941. He noted that Germany’s president, Frank-Walter Steinmeier, joined Zelensky and Israeli President Yitzhak Herzog last year to mark the 80th anniversary of the massacre.