Since the war in Ukraine began, the historian Timothy Snyder has made several trips to Ukraine, and it was there that he wrote parts of his newest book, “On Freedom.” The author of “Bloodlands” and “On Tyranny,” Snyder spoke in Ukrainian with soldiers, farmers, journalists, and politicians, including President Volodymyr Zelensky. He talks with David Remnick about the Ukrainian conviction that they can win the war, and the historical trends that support that conviction. But the thrust of Snyder’s new book is to apply what he learned from them to larger principles that apply to our own country. In areas taken back from Russian control, Ukrainians would tell Snyder they were “de-occupied,” rather than liberated; “freedom,” he writes, “is not just an absence of evil but a presence of good.”

“If you think that freedom is just negative,” Snyder told David Remnick, “if you think that freedom is just an absence of [evil] things, I think you then argue yourself into a position where given the absence, stuff is going to work out. … The market is going to deliver you freedom, or the founding fathers … something else is going to deliver you freedom. And that of course is wrong. It’s an essentially authoritarian conviction. Because if anyone’s going to deliver you freedom, it’s going to be you, in some way.”