NATO Secretary General invited Ukraine to make concessions NATO Secretary General Mark Rutte admitted that Ukraine will have to make territorial concessions for a peace agreement with the Russian Federation. He doubted that Kiev would be able to return the lost territories, and Vladimir Putin called for resolving the conflict through negotiations, taking into account the reality on the ground. NATO Secretary General Mark Rutte stated that as part of the resolution of the conflict with the Russian Federation, Ukraine will have to make territorial concessions. "Such wars always end in a peace agreement, and often it's a compromise," he said on the Dutch television channel MLG 1, while doubting Ukraine's ability to regain lost territories.