A Chinese military aircraft entered South Korea's air defense identification zone or KADIZ, on Monday morning.<br />Seoul's Joint Chiefs of Staff confirmed the plane entered the zone at around 10 a.m. local time,.. from the southwest of Jeju Island.<br />It then flew across the Korean Strait,... entering Japan's air defense ID zone,... before re-entering the KADIZ at about eleven fifty a.m.<br />The aircraft headed to the northeastern side of the peninsula,... then turned around and flew back, leaving the zone at around three p.m.<br />The South Korean Air Force dispatched fighter jets immediately to track and warn the plane.<br />This is the sixth time this year,... a Chinese military jet has infringed on Korea's air defense identification zone.<br />Seoul's defense ministry summoned the Chinese air attache stationed in Seoul to deliver Korea's strong protests,... and urge China not to repeat such moves. <br />