This has really turned into a non topic:
The original poster has not supplied any information of a US encirclement. The best anyone has come up with is Japan and Korea. Both still allied with the US in defense from North Korea. On going since the end of WWII and the Korean War.
US selling weapons to Taiwan has been going on since the Nationalist Chinese set up government on the Island. 60 years?
In short the topic was dead on arrival.
The US is well aware the communist Chinese government does not like the US support of the Nationalists. The policy has not changed in 60 years.
Maybe the ChiComs bought into President Obama's "change" campaign. "Question: If China had either missiles or troops in Cuba, the Dominican Republic and Mexico, would you see that as encirclement?" quote 13Th_redneck
No, but it might equal about a 100 degree arc. Definitely not encirclement.
Same as the US missiles in Japan, South Korea and Taiwan might equal a 60 degree arc. Well short of encirclement.
Seems a few people may not have had Geometry?