Prince Harry struggled to hold back tears as he described the battle against the dangers of social media for children as a “David versus Goliath situation.”

On Wednesday, the 41-year-old royal attended a gathering in Los Angeles, where he met with grieving British families who have lost children and are now pursuing legal action against Instagram and YouTube.

The high-profile case, unfolding in California, will examine whether the tech giants bear responsibility for harming young people’s mental health.

“Truth, Justice and Accountability”

Harry, who was reportedly accompanied by his wife Meghan Markle, commended the bereaved parents for their courage in “telling [their] stories over and over again” and for uniting around the shared mission of bringing “truth, justice and accountability” into focus.

“We’ve said time and time again that this is a David versus Goliath situation. I’ve been in some similar situations myself, [others] vastly different,” he told the families in footage shared by the BBC.