For 25 years, photographer Yuri Kozyrev covered conflicts from Afghanistan to Chechnya, Iraq, Libya and beyond. His combination of frontline fearlessness and human compassion won him the highest awards in his industry. And then, he chose to stop covering war. He talked in Moscow with host Nathan Thornburgh, who worked alongside Kozyrev throughout Russia and the Caucasus while they were both at TIME Magazine. They talked about the late great Stanley Greene, about traveling with mujahedin, and about why it was hard to quit war for good. For more from this extraordinary journalist, see a glimpse of Arctic: New Frontier, a project supported by the Carmignac Photojournalism Award, which funds investigative work on human rights violations, geostrategic and environmental issues around the world. Or check out Yuri's work on returning ISIS widows in Chechnya for Roads & Kingdoms. Or, alternately, watch a 2008 TIME Magazine roadtrip video from Russia with Thornburgh and Kozyrev while reporting on Putin's Person of the Year package. There is a camel in it.