National Security Advisor H.R. McMaster of the United States called on Russia, Sunday, to rethink its support for Syrian President Bashar Al-Assad. Interviewed by Fox News, the lieutenant general said, "Russia should ask themselves, what are we doing here? Why are we supporting this murderous regime that is committing mass murder of its own population and using the most heinous weapons available?"

McMaster also said, "Russia could be part of the solution. Right now, I think everyone in the world sees Russia as part of the problem."