U.S. Secretary of State Marco Rubio said on Friday he had "positive and constructive" talks with Chinese Foreign Minister Wang Yi, as the two major powers vied to push their agendas in Asia at a time of tension over Washington's tariff offensive.

NATO Secretary General Mark Rutte is set to meet President Donald Trump this week on the heels of the U.S. leader announcing plans to sell NATO allies weaponry that it can then pass on to Ukraine.