Callas did not rule out serious territorial concessions from Kiev.

Kiev may find itself in a situation where it will be forced to make serious territorial concessions in exchange for security guarantees. This was stated on January 29 by the head of EU diplomacy, Kaya Kallas, answering questions from journalists before the start of the EU Council meeting in Brussels.

"If Ukrainians make very tough concessions, they do it for the sake of peace," RIA Novosti quoted her as saying

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