Biden makes call for ‘respect and faith’ in 9/11 anniversary remarks Ahead of his visit to the World Trade Center on Saturday, President Biden on Friday issued a call for unity in remarks observing the 20th anniversary of the 9/11 terror attacks. US honors 9/11 victims on 20th anniversary of attacksIn video message to commemorate the nearly 3,000 people killed by Al-Qaeda, Biden urges Americans to show unity, calling it 'our greatest strength' Biden calls for unity as nation marks 20th anniversary of 9/11U.S. President Joe Biden on Friday called for national unity as the United States prepared to mark the 20th anniversary of the Sept. 11, 2001, attacks that killed 2,977 people, calling it America's greatest strength in the face of adversity. Lapid to Americans on 9/11 anniversary: ‘An attack on you is an attack on us’Other world leaders offer messages of solidarity to Washington, saying attackers failed to destroy Western values 9/11 anniversary: Biden calls for unity as US remembers attacksThe president pays tribute to the 2,977 victims on the eve of the 20th anniversary of the attacks. Watch Boris Johnson mark 9/11 anniversary: attackers failed to instil 'permanent fear'The September 11 attackers failed in their aim of making people in open societies live in "permanent fear", Prime Minister Boris Johnson said as he marked the 20th anniversary of 9/11. Boris Johnson says 9/11 failed to undermine freedom and democracyThe Queen, Keir Starmer and the PM send messages marking the 20th anniversary of the terrorist attacks UK PM Johnson: 9/11 attacks failed to divide usThe Sept. 11, 2001, al Qaeda attacks in the United States failed to divide those who believe in freedom and democracy, British Prime Minister Boris Johnson said in a video message marking the 20th anniversary of that day.