If Trump walks away, or if Kyiv rejects a deal and keeps fighting with European support, it won’t necessarily mean “the collapse of Ukraine” although more people will almost certainly die if the U.S. pulls its air defenses and intelligence-sharing capabilities, Heisbourg said.

Officials in Ukraine and Europe believe U.S. President Donald Trump is close to walking away from peace talks aimed at ending Russia’s war against Ukraine, The Financial Times reported on April 28, citing sources familiar with the matter.

President Emmanuel Macron of France hosted a lunch with Secretary of State Marco Rubio and Steve Witkoff, President Trump’s envoy, as European delegations converged on Paris.