On this day in 1994, and for the nearly 100 days that followed, 1 million Tutsi children, women and men were killed by their fellow Rwandans. Families turned against families, friends became foes, and a dark spirit of intentional and brutal violence engulfed a nation.

We will never forget the victims of this genocide. Nor will we ever forget the bravery and resilience of those who survived, whose courage and willingness to forgive remain a burst of light and hope amidst this dark chapter in human history.

This year, we remind ourselves of genocide’s rancid root: hate. We can draw a straight line between the senseless slaughter of 1 million Tutsi — as well as some Hutu and others who opposed the genocide — and the decades of hate speech that preceded it, enflamed by ethnic tensions and the long shadow of colonialism.

Today, around the world, the darkest impulses of humanity are being awakened once more by the voices of extremism, division and hate. To those who would seek to divide us, we must deliver a clear, unequivocal and urgent message: never again.

On this solemn day of remembrance, let’s pledge to stand as one against all forms of hatred and discrimination. Let’s ensure that the acts that began on 7 April 1994 are never forgotten — and never repeated. Anywhere.