The defense chiefs of Japan, the United States and South Korea on Sunday signed a memorandum institutionalizing their trilateral defense ties to sustain policy consultations, information-sharing and joint exercises, amid North Korea's nuclear and missile threats and China's growing assertiveness in the region."By signing this memorandum, our trilateral cooperation...has become more solidified and will not waver, even under changes in international circumstances," Japanese Defense Minister Minoru Kihara told reporters following his meeting with U.S. Defense Secretary Lloyd Austin and South K…READ FULL ARTICLE