Americans are remembering the September 11 terrorist attacks that killed nearly 3,000 people in 2001. Hijacked planes struck the World Trade Center in New York, the Pentagon near Washington, and a Pennsylvania field when passengers fought back. The tragedy reshaped national security, created the Department of Homeland Security, and led to years of military operations overseas. Memorials and ceremonies across the country honor the victims, first responders, and families impacted. Today, September 11 remains a solemn reminder of resilience and unity in the face of tragedy.
