EXPLAINER: Who are Mariupol’s last defenders?

The Associated Press

The Ukrainian forces who made a determined last stand in a Mariupol steel mill against Russian troops were a mixture of seasoned soldiers, border guards, a controversial national guard regiment and volunteers who took up arms in the weeks before Russia’s invasion. As Ukraine works to evacuate the last forces from the plant, Russia calls it a mass surrender but Ukraine calls them heroes who fulfilled their grueling task.