On the 80th anniversary of being invaded by Nazi Germany.

Poland would wind up losing nearly one-fifth of its population in the war, according to estimates.

As such, it was more of a day for somber remembrance than a day of triumph. The German president asked for Poland’s forgiveness, for instance. And Trump’s comment struck a significantly different tone than the man sent to Poland in his stead, Vice President Pence.

“It is difficult for any of us who are not Poles to fathom the horrors that began here 80 years ago, on this day, the first of September 1939,” Pence said solemnly