Diplomats are focusing on a narrow set of goals in preparation for a summit on Ukraine’s peace plan in Switzerland next month to ensure China and other nations of the so-called Global South attend the meeting.

German Chancellor Olaf Scholz set the scene for the gathering on Tuesday, when he told Stern magazine that the talks are going to touch on the safety of nuclear power plants, grain exports, prisoner exchanges and what he described as the "necessary taboo on the use of nuclear weapons.”

"Nobody should have exaggerated expectations,” Scholz said in an interview published on Tuesday. "We are not negotiating the end of the war there.”