President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE will participate in a ceremony at the 9/11 memorial in Pennsylvania to mark the 17th anniversary of the Sept. 11 attacks, the Associated Press reported Wednesday.

First lady Melania Trump Melania TrumpMelania Trump: Ginsburg's 'spirit will live on in all she has inspired' The Hill's 12:30 Report - Presented by Facebook - You might want to download TikTok now Warning label added to Trump tweet over potential mail-in voting disinformation MORE will join the president at the Flight 93 National Memorial in Shanksville, the White House told the AP.

The memorial is located at the site where one of the four hijacked planes crashed during the Sept. 11 attacks. Nearly 3,000 people died during the attacks.

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Trump spoke last year on Sept. 11 at the Pentagon, where another plane crashed. During his speech, he warned terrorists against attacking the United States.

“The terrorists who attacked us thought they could incite fear and weaken our spirit,” he said. “But America cannot be intimidated, and those who try will soon join the list of vanquished enemies who dared to test our mettle.”

Trump has a complex record regarding the 9/11 attacks.

As a private citizen and on the campaign trail, Trump praised first responders in New York who worked to save people trapped inside the World Trade Center.

But he has also made comments appearing to blame former President Bill Clinton William (Bill) Jefferson ClintonChelsea Clinton: Trump isn't building public confidence in a vaccine Hillary Clinton launching podcast this month GOP brushes back charges of hypocrisy in Supreme Court fight MORE for the attack because he “didn’t kill Osama bin Laden when he had the chance to kill him” and said his successor, George W. Bush, failed to do so because “he didn’t listen to the advice of the CIA.”

In 2015, Trump also claimed that when the Twin Towers collapsed, “thousands and thousands of people were cheering” in New Jersey, where he said there are “large Arab populations.” There is no record of such celebrations occurring in New Jersey at that time.