original: Ban became actively involved in issues relating to inter-Korean relationships.
simplifications: Ban became involved in issues about inter-Korean relationships. Ban became got involved with inter-Korean relationships problems. Ban got into issues linked to Korean relationships. Ban became involved in issues concerning inter-Korean relationships. Ban became actively involved in issues with inter-Korean relationships. Ban got involved in issues about relationships between the North and South Korea. Ban became very involved in issues relating to inter-Korean relationships. There were bans in issues that has to do with inter-Korean relationships. Ban was actively a part of issues related to inter-Korean relationships. Ban has been actively involved in inter-Korean relations issues.