Luke Mogelson, a contributing writer at The New Yorker, is one of the rare reporters who has seen the war in Ukraine from the front lines. He recently spent two weeks embedded with a group of fighters from around the world who had chosen to travel to Ukraine and join the war against Russia.

In a new story in the magazine, he writes about the sophisticated and incessant violence of the war, and the mentality that keeps these volunteer soldiers there, fighting on behalf of a country that is not their own. He joins Tyler Foggatt to discuss what he witnessed.