U.S. President Joe Biden and Japanese Prime minister Fumio Kishida held the U.S.-Japan summit on January 13th at the White House. The joint statement announced that the meeting was mainly concerned with the issues surrounding North and South Korea, as well as the Ukraine War, China, Taiwan, and the U.S.-Japan military alliance. Major foreign media outlets reported that the two countries agreed to strengthen their military alliance to deter China’s security threats. The Japanese government has in fact retained the counterattack ability to attack an enemy’s missile base by revising their security policy. Furthermore, Japan planned to increase the defense costs above 2% of the Gross Domestic Product (GDP), which Biden supported. It appears that the U.S. has decided to strengthen the military force of allies as its security power alone has limits in responding to North Korea, China, and Russia. On the other hand, some U.S. experts questioned the sustainability of the substantial increase in the Japanese defense budget. Meanwhile, the two summits promised to strengthen the trilateral cooperation among South Korea, Japan, and the U.S. in other domains. Kishida also clarified his position to sustain communication for better relations between Japan and Korea at a press conference on January 14th .