For many Americans, September 11th was the first major surprise attack on the nation since Pearl Harbor—a sudden breach of the belief that distance could keep danger from reaching home. What began as a normal Tuesday became a dividing line in American history, separating the country people knew from the one they would have to learn and carefully navigate afterward. The attack eroded a sense of security and began a period of grief and change whose effects still remain today.

That morning, terrorists hijacked four passenger planes, striking the World Trade Center in New York City and the Pentagon in Arlington, Virginia. Passengers aboard Flight 93 fought back against hijackers before their plane crashed in Shanksville, Pennsylvania. 2,977 lives were lost, and millions more were changed forever. American airspace was closed, and families and communities were thrown into uncertainty. Images of smoke rising from Manhattan, flames tearing through the Pentagon, and first responders rushing toward danger revealed the scale of an attack few had imagined possible on American soil.

What followed in those first days was grief, fear, anger, and uncertainty—but also something powerful and deeply American: flags appeared on front porches, cars, storefronts, and highway overpasses. Churches and community centers filled with people seeking comfort and community.  Americans lined up to donate blood, raised money for victims’ families, sent supplies to rescue workers, and paused together in silence. But as earlier generations had after Pearl Harbor, the country remembered that before we were Democrats or Republicans, before we were divided by region, background, or class, we’re Americans.

The attacks galvanized the nation, not only because we had been wounded, but because we recognized we had something worth defending. Firefighters, police officers, paramedics, service members, office workers, airline passengers, and ordinary citizens showed us what courage looks like when there is no time to prepare a speech or calculate the cost. The passengers of Flight 93 reminded us that heroism is not always found in famous places or among famous people. Sometimes it is found in a decision made in the final minutes of life. Their example helped shape a national resolve that soon extended into military action abroad, expanded security measures at home, and renewed a commitment to public service.

Twenty-five years later, it is hard not to wonder what happened to that spirit. The years after September 11th brought wars abroad, new airport and surveillance procedures, difficult debates about liberty and security, and lasting physical and emotional burdens for survivors, responders, service members, and their families. At home, our country feels more divided than at any point many of us can remember. We argue not only about policies, but about motives, identity, history, and truth. Too often, we treat neighbors as enemies. The unity born from the shared shock of that day now feels fragile, distant, and sometimes almost unimaginable.

There is now an entire generation of college students who were not alive when the towers fell, and the Pentagon burned. For them, September 11th is not a lived memory – it is history, something learned in classrooms or documentaries. Yet much of the world they inherited, from airport security to the wars and policies that molded their childhoods, is an aftereffect of that day. That makes our responsibility greater. Those of us who remember must tell the story with honesty: the horror of the attacks, the bravery of the responders, the heartbreak of the families, the difficult choices and mistakes made afterward, and the extraordinary unity that briefly reminded us who we could be.

If we forget September 11th and the years that followed, we risk losing more than memory. We risk losing the values that helped carry us through the attack and its aftermath: courage, sacrifice, faith, service, gratitude, resilience, and love of country. We also risk forgetting that fear can test a nation’s judgment, that security and liberty must both be guarded, and that the costs of war and recovery continue long after public attention moves on. We risk teaching future generations that freedom is automatic, that peace is guaranteed, and that national unity is unnecessary unless disaster forces it upon us. We risk becoming a people so consumed by our divisions that we no longer recognize the privileges we’ve inherited – or acknowledge the responsibility required to preserve them.

Remembering September 11th should not mean living in fear or anger, nor should it require ignoring the complicated consequences that came afterward. It should mean honoring the dead by living with purpose, caring for those who still bear the physical and emotional costs, and learning from the choices the nation made in response. It should mean telling our children and grandchildren why that day mattered, why the people who ran toward danger deserve our gratitude, and why the unity that followed should not be treated as a temporary reaction but as a standard worth recovering. A nation can survive an attack from the outside. What is harder to survive is the slow surrender of its character from within.

On this 25th anniversary, may we remember the lives lost at the World Trade Center, the Pentagon, and in Pennsylvania. May we honor the families who still carry that grief, the responders and veterans who continue to live with the consequences, and all those whose lives were redirected by a surprise attack that, like Pearl Harbor, changed the course of the nation. May we teach those who were not yet born what happened, what followed, and why both still matter. May we find the humility to ask whether the America that stood together amid the ashes of September 11th still lives in us—not only in times of tragedy, but in the way we speak, serve, and forgive.