International public opinion on the Ukraine peace process

At a critical moment in the peace process, new international polling from More in Common shows strong support for Ukraine across five countries, alongside widespread rejection of the US-backed peace deal.

Based on polling across the US, Britain, Germany, France and Poland, the research explores how attitudes in these countries have shifted since the Oval Office feud in February, international concern about the peace process, and a desire on both sides of the Atlantic for Europe to invest in defence capabilities and become more self-reliant.

Key findings:

Support for Ukraine remains steadfast across all five countries polled: Majorities in Britain, Germany, Poland, the United States and France sympathise with Ukraine, see Russia as the aggressor and believe Ukraine’s defence is important to their own countries. With the exception of Poland, these views have stayed remarkably stable since March 2025.
International rejection of the proposed peace deal: While there is strong desire across Europe and the United States to see an end to the war, few want a rushed peace that rewards Russia or leaves Ukraine vulnerable. Across all five countries, people tend to reject key elements of the US-backed deal, including territorial concessions and reductions in Ukraine’s armed forces. Britons and Poles in particular think these conditions would be unacceptable.
Wider concern about the US President’s role: Apart from Poland, the other European countries polled tend to believe President Trump has hindered rather than helped the peace process. In the United States, many remain unsure which side he is on, with fewer than a quarter saying he sympathises with Ukraine over Russia.
Most think that the stakes extend far beyond Ukraine: Across all five nations, people believe that if Russia is rewarded with territory, it will embolden further invasions of other European countries. More than two-thirds in every country worry about the prospect of a wider war in Europe in the coming years.
Strong desire on both sides of the Atlantic for Europe to become self-reliant on defence: For many Europeans and Americans, the conflict has strengthened the desire for Europe to become more independent on defence. Clear majorities across the five countries want Europe to invest more in the continent’s security, and most want Europe eventually to become self-reliant from NATO.