Finishing up “American Caesar” a book on MacArthur. He wanted to use Taiwanese forces in the Korean war. Politicians(+ JCOS) didn’t want to expand the war even though Chinese attacked from Manchuria. Plus there were those ‘volunteers’ that entered the North.
Taiwan Strait was being Patrolled by the American fleet. An invasion in response was unlikely, according to MacArthur. The Vietnamese ‘standoff’ in 1979 showed the Chinese are not what they were cut out to be. They’re a wealthier nation now.