"We've made the point all along that it is not a requirement for any country around the world to choose between the United States and China. It is our intention to provide choices to countries when it comes to what the relationship with the United States looks like.
Well in many ways, this doesn't change the concerns that we have with the S-400 system. I think it shines a spotlight on the destabilising role that Russia is playing not only in the region but potentially beyond as well