71. The U.S.-Japan Alliance: Significance and Role
- Author:
- Seth Cropsey and Jun Isomura
- Publication Date:
- 04-2018
- Content Type:
- Special Report
- Institution:
- Hudson Institute
- Abstract:
- The alliance between the United States and Japan, born at the end of the Second World War, continues to play a vital role in the defense of the Japanese Islands and in U.S. regional Indo-Pacific strategy. The People’s Republic of China is challenging the U.S.-Japan alliance in the Indo-Pacific Region. China has greatly increased its defense budget, expanded and modernized its navy, and increased operations that challenge the region’s status quo—including in the East China Sea, where the PRC regularly violates Japan’s territorial waters, in the vicinity of the contested Senkaku Islands. China’s belligerent behavior poses a strategic threat to Japan’s domestic security and will continue to encroach on Japanese and U.S. interests in the region. The PRC’s threatening behavior and an aggressive nuclear-armed North Korea are testing the U.S.-Japan bilateral alliance as it has not been tested since the Cold War. The United States continues to serve as a guarantor of Japan’s national security. The U.S. military has stationed naval, air force, army, and amphibious forces in Japan as a strategic deterrent against would be aggressors. With U.S. forces in Japan as a deterrent, Japan has developed a pacifist strategy based on non-aggression and security limited to self-defense. The Japanese constitution’s Article 9 enshrined this principle into law. Japan’s regional strategy has paid dividends through political, diplomatic, and economic engagement with Indo-Pacific countries. This includes Japan’s increasing defensive security cooperation in the region. The Japanese Self-Defense Forces have participated alongside the United States and such neighboring states as South Korea in bilateral and multilateral exercises that build both capabilities and security relationships. Beyond diplomatic and soft power engagement, Japan has in recent years increased its defensive capabilities. To counter Chinese and North Korean missile threats, Japan has worked with the United States to build an advanced ballistic missile defense. In addition, the Japanese Self-Defense Forces have acquired medium-range cruise missiles for its air forces to deter potential adversaries from launching attacks. Tokyo has expanded its defense to counter challenges below the threshold of war against Japan’s outlying islands. Improved intelligence, surveillance, and reconnaissance and the establishment of amphibious forces contribute to this defense.
- Topic:
- International Relations, Defense Policy, National Security, Bilateral Relations, and Alliance
- Political Geography:
- Japan, China, Asia, North America, and United States of America