Why do we have military present in East Asia?

I have been told that we have troops there due to the taiwan/China conflict, but is there any need for troops in East Asia anymore?

the same reason we have troops in europe.....mobility reasons, if something happens that needs a quick response its faster to deploy troops from overseas......say korea does something stupid, its more practical to send troops from japan that can be there in a couple hours then to try to round up troops in the US to send......plus most of the countries where we have overseas bases are huge allies ( japan and england for example)

Most predominate is the friction and issues with North Korea. Only some in Taiwan just in case but most are in Japan and South Korea if North Korea gets too cocky.

I think we have some in the Phillipines (not sure). But it's suppose to ensure a greater global response and faster actions. Sceneros as if North Korea desides to ship a couple nuclear weapons to Iran or Al-Qaeda and if we are there, it allows us to react fast and take it out.

In case North Korea decides to do something stupid, like invade South Korea.

KOREA maybe?

Looken after South Korea

Mostly leftover from trouble with the whole east timor- Vietnam- Philippines- China- Korea's- Russia etc ordeal's of the later 20th century involving communism, cheap labor, oil, etc. and to protect US interest and power in the region and to prevent anyone from harming or questioning Western imperial hegemony and to protect American investors and companies.