Japan's top government spokesman said Friday it is "regrettable" that the Self-Defense Forces were forced to scramble fighter jets after a South Korean military airplane entered the Japanese air defense identification zone without notice earlier this month.Chief Cabinet Secretary Yoshimasa Hayashi told a press conference that the government has asked South Korea to take measures to prevent similar incidents, while calling Seoul an "important partner" with which Tokyo will continue to "closely collaborate."On Thursday, South Korea's Yonhap News Agency reported that SDF fighters scrambled to …READ FULL ARTICLE