In looking through the news I came across the below, and I did not understand the Russian or Chinese position as to why they don't want US to set up this missile defense system. I will not argue or debate the matter (or have no intention of doing so) but simply wish to understand this article (seems translated) or the position of the other two countries. There are neat references to HOW the system works, also a referral to the "real" intentions, the latter is way beyond my ability. Talks about Russian/Chinese dislike, then ties it to Russian oil. Beyond me! And it's BBC. I always have trouble seeing if they have an agenda. For me they are not transparent, very unlike Fox or CNN. TIA,

https://news.bbc.co.uk/2/hi/asia-pacific/7416734.stm