US Secretary of State Marco Rubio and Steve Witkoff, President Donald Trump’s international envoy, held high level talks with Ukrainian and European officials in Paris at a summit Thursday aimed at bolstering Ukraine’s defenses against Russia’s unrelenting invasion.

Ukraine and the US will hold in-person negotiations. However, this will take place after documents that both sides can agree on are developed, stated Deputy Head of the Office of the President Ihor Brusylov.

After hours of separate meetings at the French presidential palace with U.S., Ukrainian and European officials, French President Emmanuel Macron brought them all together for a final round of talks at the end of the day. The outcome of the negotiations wasn’t immediately clear.