U.S. President Donald Trump on Sunday expressed optimism about upcoming talks in Saudi Arabia aimed at ending the war in Ukraine. Trump commented while flying from Florida to Washington, DC. "We're looking at a lot of things, we have big meetings coming up, as you know, in Saudi Arabia that's going to include Russia. It'll be Ukraine. We'll see if we can get something done. I'd like to get something done. A lot of people died this week, as you know, in Ukraine, not only Ukrainians but Russians. So I think everybody wants to see it get done. We're going to make a lot of progress, I believe, this week," Trump said. Trump added also that he was not concerned about Russia and China conducting joint military exercises.