NATO Secretary-General Jens Stoltenberg warned that the Western military alliance should be ready for bad news from the Ukrainian front as Kyiv continues to defend against Russia’s all-out invasion.

“Wars develop in phases,” Stoltenberg said in an interview Saturday with German broadcaster ARD. “We have to support Ukraine in both good and bad times,” he said.

"We should also be prepared for bad news,” Stoltenberg added, without being more specific.