On Jan. 20, The New York Times captured drone video over the sprawling Azovstal Steel and Iron works complex in Mariupol, Ukraine. Now, it is a battered fortress for the last Ukrainian defenders and their families battling Russian forces.

On Jan. 20, The New York Times captured drone video over the sprawling Azovstal Steel and Iron works complex in Mariupol, Ukraine. Now, it is a battered fortress for the last Ukrainian defenders and their families battling Russian forces.