The greatest statesmen, philosophers, humanitarians ... have not been able to put an end to war. Why place that demand on photography?

The pictures that were coming from Vietnam were showing us what was really happening on the ground level. It was in contradiction to what our political and military leaders were telling us. They were straight forward documentary images. A powerful indictment of the war, of how cruel and unjust it was. When I finally decided what to do with my life, it was to follow in that tradition.

I want my work to become part of our visual history, to enter our collective memory and our collective conscience. I hope it will serve to remind us that history's deepest tragedies concern not the great protagonists who set events in motion but the countless ordinary people who are caught up in those events and torn apart by their remorseless fury. I have been a witness, and these pictures are my testimony. The events I have recorded should not be forgotten and must not be repeated.

It is very hard to say where you're going until you get there. That kind of thing is based very much on instinct. As a photographer, one of the most important lessons I have learnt is that you have to learn to listen to and trust your own instinct. It has helped to guide me - this far at least.

I have been a witness, and these pictures are my testimony. The events I have recorded should not be forgotten and must not be repeated.

I used to call myself a war photographer. Now I consider myself as an antiwar photographer.

If you want to connect with people who are in distress and great grief and scared, you need to do it in a certain way. I move kind of slow. I talk kind of slow. I let them know that I respect them.