page_title: Air defense identification zone
section_title: Japan
hierarchical_section_title: Air defense identification zone / Japan
caption_attribution_description: Deutsch: Karte der ADIZ (Air Defense Identification Zone) von: VR China (CADIZ) inklusive der ADIZ "East China Sea" Südkorea (KADIZ) mit angekündigter Erweiterung Japan (JADIZ) English: Map of the CADIZ (PR China; also showing the ADIZ "East China Sea") KADIZ (South Korea; with extension announced) JADIZ (Japan) 한국어: 중국 방공식별구역과 일본 방공식별구역의 리스트
context_page_description: An air defense identification zone is airspace over land or water in which the identification, location, and control of civil aircraft is performed in the interest of national security. They may extend beyond a country's territory to give the country more time to respond to possibly hostile aircraft. The concept of an ADIZ is not defined in any international treaty and is not regulated by any international body.
  The first ADIZ was established by the United States on December 27, 1950, shortly after President Truman had proclaimed a national emergency during the Korean War. About 20 countries and regions now have such zones including Canada, India, Japan, Pakistan, Bangladesh, Norway and the United Kingdom, People's Republic of China, South Korea, Taiwan, United States, Sweden, Iceland and more. Russia and North Korea have unofficial ADIZs as well. Usually such zones only cover undisputed territory, do not apply to foreign aircraft not intending to enter territorial airspace, and do not overlap.
  Air defense zones should not be confused with flight information regions, which are used to manage air traffic.
context_section_description: Japan has an ADIZ that covers most of its exclusive economic zone. Japan's ADIZ was created by the United States Armed Forces (USAF) after World War II, with the western border at 123° degrees east. This resulted in only the eastern half of Yonaguni Island being part of Japan's ADIZ and the western half being part of Taiwan's ADIZ. On 25 June 2010, Japan extended its ADIZ around Yonaguni 22 km westwards to align with its territorial waters. This led to overlapping with sections of Taiwan's ADIZ. However, Taiwanese foreign affairs officials said that it does not make any difference, as an understanding has been reached between the two parties on how to handle it.
  According to China Network Television on 24 November 2013, China and Russia do not recognize Japan's ADIZ.
caption: Air defense identification zones over Japan (blue), South Korea (green), and China (pink)
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