According to Politico, Finnish President Alexander Stubb and/or NATO Secretary General Mark Rutte are expected to accompany Ukrainian President Volodymyr Zelensky to Washington on Monday for his meeting with U.S. President Donald J. Trump. European leaders reportedly fear that Trump may not extend to Zelensky the same level of “hospitality” he showed Russian President Vladimir Putin during their summit in Alaska on Friday.

Officials are particularly concerned about the possibility of another confrontation if Zelensky resists certain concessions—similar to the tense episode at the White House in March. The plan is for Stubb or Rutte, both of whom have built a strong rapport with Trump since January, to help ease potential tensions between him and Zelensky while ensuring Europe remains directly involved in future discussions on Ukraine.