In Ukraine, where war with Russia grinds on, the dominant question has become: can one side outlast the other? This is especially true as both sides face another grueling winter. 
One thing Russia has in ample supply is men. But how it treats its soldiers is having an effect on the battlefield, explains Dara Massicot, who has studied the Russian military for years, first at the U.S. Defense Department and later at RAND and the Carnegie Endowment for International Peace.  
Foreign Affairs Deputy Editor Kate Brannen sat down with her to discuss how the human dimension of this war provides clues about where it might be headed next. 
You can find transcripts and more episodes of The Foreign Affairs Interview at https://www.foreignaffairs.com/podcasts/foreign-affairs-interview.