Air Defense Identification Zone (East China Sea)
Japan's ADIZ was created by the United States Armed Forces during the post-WWII Allied occupation, with the western border at 123° degrees east.
[20] According to the Chinese Ministry of National Defense, foreign aircraft in the zone will be expected to abide by the following:[21] China announced that the rules were in effect from 10 am on 23 November 2013 Beijing time.
"[22] On 29 November a Chinese Foreign Ministry spokesman replied to the statement, "You referred many times to ADIZs established by other countries, but there is a difference.
"[23] The weeks prior to the ADIZ announcement, Japanese media complained that Chinese journalists had been ordered to not make any concessionary comments regarding China's territorial claims.
[30] Japanese Defence Minister Itsunori Onodera said that "it's important for both sides to take a calm approach and deal with the situation according to international norms.
[35] The Koreans said they had launched a joint air and sea military exercise on 3 December to show their "intention to protect our jurisdiction over Ieodo’s waters".
[36] Although the ADIZ announced by Beijing overlaps by a relatively small 23 000 square kilometers with the identification zone of Taiwan (Republic of China),[37][38] official reaction from Taipei was initially muted, leading to protests from the opposition Democratic Progressive Party (DPP) and some academics that President Ma Ying-jeou's government was failing to assert Taiwan's sovereignty.
[39][40] On 29 November caucus leaders of both the DPP and ruling KMT party signed a joint statement calling on President Ma's administration to lodge a "stern protest" with Beijing.
"[44] A U.S. State Department statement called China's establishment of the zone a "unilateral action [that] constitutes an attempt to change the status quo in the East China Sea," adding that "Freedom of overflight and other internationally lawful uses of sea and airspace are essential to prosperity, stability, and security in the Pacific.
We don't support efforts by any State to apply its ADIZ procedures to foreign aircraft not intending to enter its national airspace.
"[45] Chuck Hagel, then American Secretary of Defense, said that while there was nothing new or unique in establishing an ADIZ, criticized the manner in which China had acted as "unilateral", "immediate" and "without consultation".
[46] Then American Vice-President Joe Biden discussed the issue at length with Chinese Communist Party leader Xi Jinping.
[48] On 29 November 2013, the U.S. Department of State issued a statement titled "China's Declared ADIZ – Guidance for U.S. Air Carriers" that the U.S. government generally expects that U.S. carriers operating internationally will operate consistent with NOTAMs (Notices to Airmen) issued by foreign countries but also stressed that this does not mean U.S. government acceptance of China's ADIZ requirements.
[55] The European Union's top diplomat, Catherine Ashton, said "[t]his development heightens the risk of escalation and contributes to raising tensions in the region.
[58] Indian analyst Brahma Chellaney said the Chinese move represented what PRC Rear Adm. Zhang Zhaozhong (mistaken to be "Maj. Gen." in Chellaney's article) called a "cabbage strategy," which involved asserting a claim, launching furtive incursions into the claimed area, and erecting multiple "cabbage-style" layers of security around the contested area to deny rivals access.
