The International Criminal Court (ICC) has found the Congolese warlord, Thomas Lubanga, guilty of recruiting and using child soldiers between 2002 and 2003.
It is the court's first verdict since it was set up 10 years ago. He will be sentenced at a later hearing.
He headed a rebel group during an ethnic conflict in a gold-rich region of Democratic Republic of Congo.
The prosecution accused him of using children as young as nine as bodyguards and fighters.
Anchor Marco Werman finds out more about Lubanga from Anneke Van Woudenberg of Human Rights Watch.