When there was a widespread demonstration against the Korean - Japanese treaty in 1964 Kim 's Sixth Division was dispatched to Seoul to subdue student demonstrations .
1964 park pursued in secret and was widely regarded to be disadvantageous to Korean fishermen .
When there was a widespread demonstration against the Korean - Japanese treaty in 1964 , which Park pursued in secret and was widely regarded to be disadvantageous to Korean fishermen , Kim 's Sixth Division was dispatched to Seoul to subdue student demonstrations .