United States marks quarter-century since September 11 attacks

Commemorative ceremonies unfolded across the three sites most affected by the September 11, 2001 attacks, as the United States observed the somber milestone of a quarter-century since the tragedy. The observances reflected the enduring national significance of the attacks, which remain among the deadliest terrorist incidents in modern history.

In New York, mourners gathered at the memorial site where the World Trade Center towers once stood, remembering the thousands who perished in lower Manhattan. Similar remembrance events took place at the Pentagon in Virginia and at the crash site in Shanksville, Pennsylvania, where passengers and crew members heroically resisted their hijackers.

The 25-year interval marks a generation since the attacks fundamentally altered American foreign policy, security protocols and national consciousness. Annual commemorations continue to draw crowds of families of victims, survivors, first responders and citizens seeking to honor those lost in the coordinated attacks that morning.

The ceremonies served as a reminder of the nation's collective memory and the lasting impact of the attacks on American society. Each anniversary reinforces the significance of remembering those killed and recognizing the resilience demonstrated in the aftermath of the tragedy.