In 2005, Roger Bacon's son Matthew was one of the many British service personnel killed whilst serving in Iraq.

Jason Clasby worked with Matthew and was sitting next to him when he died.

As they told Eddie Mair, despite meeting briefly at the Chilcott inquiry, the two men had never sat down to talk about what happened, until now, ten years after Matthew's death.

(Photo: British troops patrolling in Basra, Iraq Credit: Getty Images)