Oleksiy Arestovych, an adviser to the head of the Ukrainian President's Office, said on national television that "the fight for Lysychansk and Severodonetsk has entered its climax."
This phase looks terrifying from a military point of view," he said.
Arestovych compared the situation to the "18th round" of a boxing bout. "Any side that sends two battalions of artillery there wins this fight. Let's see who sends. Who has [those battalions] -- only the military command on both sides knows."