Ukrainian President Volodymyr Zelenskyy says he's willing to end the "hot phase of the war" with Russia - including ceding captured territory - in exchange for NATO membership that includes Ukraine's internationally recognized borders.

"If we want to stop the hot phase of the war, we need to take under the Nato umbrella the territory of Ukraine that we have under our control," he told Sky News, adding "We need to do it fast. And then, on the occupied territory of Ukraine, Ukraine can get them back in a diplomatic way."

Zelenskyy said that a ceasefire was needed to "guarantee that [Russian President Vladimir] Putin will not come back" to take more Ukrainian territory," or that "he [Putin] will come back."

In short, to end the war, Zelenskyy wants the thing that started the war.