The next meeting between President Donald Trump and NATO leaders now has an official date: July 7-8 in Ankara, Turkey. But behind the diplomatic preparations, European officials and security experts are increasingly worried that the gathering could become one of the most consequential summits in the alliance's 77-year history.
Secretary of State Marco Rubio confirmed this week that Trump will attend the summit despite months of tensions between Washington and several European allies. Rubio described the gathering as potentially one of the most important NATO meetings in years.
