take a listen to what he had to say. we ll fight as long as we ll have to fight. we have orders. we need more supplies, we need more ammunition, we need more medical care for our wounded. reporter: now jonathan, taking mariupol would be a major prize for vladimir putin and would also be kind of a chance for him to reset the narrative after the humiliation forced his suffer out on the black sea with the sinking of the moskaf. president zelenskyy seems to acknowledged the end is coming for the defense of mariupol. the forces there fought heroically. he warns if russian troops massacre the remaining troops,