On December 26, 2004, one of the deadliest natural disasters in history struck off the western coast of Sumatra.
The earthquake and subsequent tsunamis reportedly killed over 285,000 people around the rim of the Indian Ocean.
Banda Aceh was the closest major city to the earthquake's epicentre.
"After the first trip, he said, 'Honey, I have to go back. I have to go back.' "
In Santa Ana, California, daytrader Roy van Broekhuizen received a call from his church, asking if he would lead a team to Indonesia to help with relief efforts.
Crying over bodies, bandaging the injured and working with the people to rebuild homes and schools, that first trip to Indonesia changed Roy's life forever.
Oh God, please help them"
Roy frequently recounts the story of his driver, who told him how the wave snatched his wife and three children... and the stuffy, smelly camps where people sleep on mats.
In one camp, he spoke with mostly men, survivors who had lost their wives, their children and their livelihoods. They were grateful to share their stories, to have someone who would just listen.