In late 2013, China imposed an Air Defense Identification Zone
(ADIZ), in which aircraft are supposed to identify themselves to Chinese authorities, above the East China Sea.
This report from the Heritage Foundation lists Beijing's recent provocative moves in in what it calls its waters: These include placing the South China Sea under Chinese administrative control; rejecting mediation with other nations claiming waters and islets there; establishing in the East China Sea an air defense identification zone
overlapping those of Japan and South Korea; and, in a show of force, dispatching the new Chinese aircraft carrier to the south, where it almost collided with an American naval vessel.
The Defense Ministry's Joint Staff report said they have been closely monitoring Chinese air activities since they included airspace above the disputed Senkaku Islands in the East China Sea as part of its newly declared air defense identification zone
(ADIZ) in November last year, the Japan Times reports.
"China's recent and sudden announcement of the establishment of a new air defense identification zone
has, to state the obvious, caused significant apprehension in the region," Biden said.
"The US government has made it clear that it is deeply concerned about China's establishment of the air defense identification zone
, and that it will not accept China's demands regarding operations in the zone," Japanese chief cabinet secretary Yoshihide Suga told a news conference.
"The issue of the air defense identification zone
is making the already difficult regional situations even more difficult to deal with," he said as he attended a key defense symposium in Seoul, South Korea
"The real goal of the air defense identification zone
is not to try to deal with civilian airlines, since at all times those are expected to be open to announcing themselves and their intentions.
Asian aviation officials said airlines would have to inform China of flight plans before entering airspace over waters disputed with Japan, forcing carriers to acknowledge China's authority over a newly declared "Air Defense Identification Zone
The state-run Global Times issued the warning a day after Chinese fighters entered Japan's air defense identification zone
over the sea, located north of the islands, prompting the Japanese Air Self-Defense Force to scramble F-15 fighter jets from its Naha base in Okinawa Prefecture to the area.
21, after the MSDF's 4,000-ton-class destroyer Ariake had approached to a point 54 kilometers from the disputed islets, a military helicopter took off from the vessel and entered without authorization what Seoul considers to be the "Korea Air Defense Identification Zone
An FAA Notice of Proposed Rulemaking may require an online course on flight procedures within the Air Defense Identification Zone
(ADIZ) mandatory before flying anywhere near D.C.
An air defense identification zone
is an area of the skies declared by a state for the early identification and location of foreign planes approaching its territory.