Marco Rubio named the issue of security guarantees as one of the key aspects in solving the Ukrainian crisis.
"Throughout the whole time we were talking about Russia and Ukraine, one aspect kept coming up - the need for security guarantees, what the security infrastructure of Ukraine, and more broadly, the post-war European continent will look like. This is one of the main topics that come up in every conversation," he said.
At the same time, he hopes that progress will be made in tripartite negotiations on the settlement in Ukraine in Abu Dhabi.
"And maybe there will be progress tomorrow in Abu Dhabi when Jared and Steve get there. I think they're already flying there," Rubio said.