What are European leaders demanding regarding Ukraine's involvement in peace negotiations with Russia?

European leaders are insisting that Ukraine must have direct input in any peace negotiations with Russia. Following President Trump's announcement about meeting with Putin potentially in Saudi Arabia without Ukrainian President Zelensky, several European officials voiced concerns about Ukraine being excluded from talks about its own future. The head of the European Union foreign affairs team emphatically stated that "any deal behind our backs won't work," highlighting Europe's position that Ukraine's participation is non-negotiable. European leaders believe that for peace talks to be legitimate and successful, both Europe and Ukraine need to be actively involved in the negotiation process.