The U.S. Marks The 21st Anniversary Of The 9/11 Terror Attacks

The ceremonies also come one month after a U.S. drone strike killed Ayman al-Zawahri, a key Al-Qaeda leader who helped plan the attacks.

In a somber ceremony at the Pentagon on Sunday, President Joe Biden marked the 21st anniversary of the 9/11 terrorist attacks.

The President laid a wreath honoring victims killed at the pentagon on September 11, 2001, whose names were also read out loud.

In a speech, President Biden called on Americans to stand together to defend democracy.