Former US Secretary of State Henry Kissinger said that Ukraine should give up territory to seal an end to the Russo-Ukrainian war in an address to Western leaders. Ukrainian leader then gave a “polite” response to the former secretary, declining his suggestion.

Speaking through video link, the 98-year-old Kissinger cautioned the World Economic Forum in Davos, Switzerland, that failing to restart peace talks with Moscow and the further isolation of the Kremlin would bring severe long-term repercussions to the stability of Europe.

“Negotiations need to begin in the next two months before it creates upheavals and tensions that will not be easily overcome. Ideally, the dividing line should be a return to the status quo ante. Pursuing the war beyond that point would not be about the freedom of Ukraine, but a new war against Russia itself,” he said.

A “status quo ante” refers to bringing back a scenario wherein Russia formally occupied Crimea and informally held control over Ukraine’s eastern regions of Luhansk and Donetsk. Ukrainian President Volodymyr Zelensky outlined his conditions for Ukraine to enter peace negotiations earlier this month. One condition was the restoration of pre-invasion borders.