Japan, China, and South Korea agree in principle to hold a trilateral summit in May.
Japan launches a ¥70 billion payment scheme to pay firms to move factories out of China to either Japan itself or countries within the Southeast Asian region in an attempt to better secure its supply chains. 57 firms, including face mask manufacturer Iris Ohyama, are among the first to receive the subsidy.
Japan says it will keep a close watch over the disputed Senkaku Islands after Chinese ships are seen near the islands for 65 days in a row. Chief Cabinet Secretary Yoshihide Suga says that Japan has protested to China over the issue and that it would respond "calmly and firmly".
Teams of United States-based researchers, composed of American, Chinese and South Korean scientists, successfully edit a piece of faulty DNA that causes a deadly form of heart disease from cells in human embryos.
United States Vice President Mike Pence visits Alaska, where he meets with Governor Bill Walker and discusses stationing F-35 squadrons in the state. Pence is beginning a 10-day trip to South Korea, Australia, Indonesia and Japan.
Japan summons China's ambassador, Cheng Yonghua, to Tokyo after a People's Liberation Army Navy warship sailed close to its territorial waters near the disputed Senkaku Islands in the East China Sea for the first time.
Two Japanese cabinet ministers Keiji Furuya and Yoshitaka Shindo visit the Yasukuni Shrine to mark the 69th anniversary of Japan's surrender at the end of World War II. This visit upsets China and South Korea as the shrine contains the graves of war criminals.