junjunforever, to make this argument more productive, bring here what your textbook describes the Vietnam war. I can find the Japanese translation of yours, but I think it might be old after seeing you data,
3. The Korean government should make a public apology and provide compensation to Vietnamese victims 77.9%
About the post war relations between Japan and your country...
It was your dictator who spent the money from Japan for your economic growth and kept it secret to the public for such a long time. Japan could not force your country to spend for the indivisual victims, though Japan suggested to do so...
I see some nationalistic Koreans claim your country had been founded before the end of WWII (as always, DPRK is monolithic to say that it was on Augst 15, 1945). If it has been true like they say, just research what former German supporting countries like Austria did after the war. It was lucky that your country had not won or lost the war, and that just indivisual Korean soldiers, not the country, faced the war criminal trials.