Zelenskiy also said he was breaking diplomatic ties with Moscow and he urged Russians "who had not lost their honor" to protest their government's actions.

Explaining what the demilitarization of Ukraine means, Peskov said it is the "neutralization of its military potential, which recently was noticeably increased due to, among other things, the active efforts by foreign countries."

Answering a question about how deep Russia plans to get inside Ukraine, Peskov said: "I cannot give any information related to military, technological, and other elements of this operation. The only source for that data is our defense institution, our military."

"The terms of the operation will be defined by its efficiency, congruity, and will, of course, be defined by the supreme commander."

Zelenskiy, meanwhile, urged Ukrainians to step up to defend their country and promised to provide them with weapons if they did so.

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