Struggles to maintain independence as a buffer state between china and russia.
a. south korea
b. taiwan
c. north korea
d. mongolia

brainliest is someone you pick by simply clicking a button. it only shows up if there are two people that answered your question, then you decide who answer more accurately with detail and explanation and you give that person the title "brainliest".

i hope this your understandings.

which time period is this? or is this story fictional, i'm going to need more info to answer this question