After weeks of defending the Azovstal steel plant as Ukraine's last stronghold in Mariupol, soldiers from the Azov Battalion began leaving the site on May 16. The troops were evacuated into Russian-controlled territory as part of what Kyiv describes as an ongoing "rescue operation." However, officials in Russia and the self-proclaimed Donetsk People's Republic (DNR) have cast doubt on the possibility of swapping these soldiers in a prisoner exchange, calling instead for Azov troops to face a "tribunal" and even capital punishment.