In a nutshell: Arbaeen: Journey of love and resistance

Each year, in the heart of Iraq, an event unfolds on a scale almost too vast to imagine, and yet, you've likely never seen a headline about it. No breaking news alerts. No live coverage. No prime-time documentaries. But this is Arbaeen, a pilgrimage that draws over 20 million people from across the globe. A peaceful walk. An ocean of humanity. A spiritual protest. And a story that, for the most part, the Western media doesn't tell.

Arbaeen takes place 40 days after Ashura, the day marking the martyrdom of Imam Hussein, the grandson of Prophet Muhammad. In 680 AD, he and 72 of his companions were killed in the desert plains of Karbala by the forces of Yazid, a tyrant of the Umayyad dynasty.