Japan plans to revise its Medium Term Defense Program earlier than originally scheduled as it looks to boost spending to counter China's growing assertiveness in surrounding waters and prepare for contingencies in the Taiwan Strait, government sources said Friday. The program, which covers the five years through fiscal 2023, could be updated within the year, with Prime Minister Yoshihide Suga and Defense Minister Nobuo Kishi having agreed earlier this month that some changes are necessary, the sources said. Discussions between officials including at the Defense Ministry and the National Security Secretariat are already underway, with budget issues set to be reviewed by the Finance Ministry. The revision would seek to fulfill Suga's promise to U.S. President Joe Biden during their meeting in Washington in April that Japan would bolster its defense capabilities to strengthen the alliance between their countries and maintain security in the Indo-Pacific region. In a joint statement issued after the meeting, the leaders singled out China for actions that are "inconsistent with the international rules-based order, including the use of economic and other forms of coercion."