Complex sentence: The K-League Cup 2009, known as "Peace Cup Korea 2009" due to the competition's sponsorship by Peace Cup Oganization Committee was South Korea's league cup competition for K-League's 15 football clubs.
Split into simpler sentences: The K-League Cup 2009, known as "Peace Cup Korea 2009" due to the competition's sponsorship by Peace Cup Oganization Committee. This is South Korea's league cup competition for K-League's 15 football clubs.