I've always questioned this. Who made it OK for the US to have bases and build ups in other countries, but other countries cannot do the same? Like when Russia and Cuba had a deal, we almost went to war over it. But yet at the time, the US has missiles located close enough to Russia.
I am so glad for your objective issue-based post, as you could probably see that this thread was about to degenerate into a dogpiling of Kuleana, instead of a discussion pertaining to the issues Kuleana raised.
The answer to your question is obviously no one. The decision to surround Russia and China for that matter with military forward operating bases and missile launchers all under the cover of defending the vassal and client states of the US empire is all baloney. Russia and China are being militarily surrounded for the obvious purpose of invasion and/or destruction. The age of national take-overs is a thing of the past. As smart as you are, you should be able to see through the lies of American imperial propaganda that Russia and China are evil and want to take over territory to expand their borders, when in fact, all of their military moves were in response to the aggressive acts of the US imperial military machine and their so-called allies.
The Cuban missile crisis is a perfect example. The Soviet Union was intent on positioning nuclear missiles in Cuba, but in response for the US empire / NATO having nuclear missiles stationed in Turkey. What was often forgotten, however, was that it was the US / NATO who started the Cuban missile crisis by the stationing of nuclear missiles in Turkey that Khrushchev saw as being too close to Moscow.
I began to question this when I was in high school with the N.Korea nuke thing. It really should not be our business what other countries do, unless we are the official world police. Like not OK for N. Korea, but OK for China, Russia, Japan, etc...
America often being described as the World's police is nothing but a polite way of saying that it is an empire, since when in human history did you have a nation ever being referred as the World's police?