What is the ADIZ?

It is an area designated by a coastal state beyond its territorial airspace to identify, monitor, control and expel aircraft with potential threats entering the zone. This is a necessary measure taken by China in exercising its self-defense right by allowing early warnings and providing air security. Civil aircraft will not be affected in any way.

Who has such zones?

The United States set up the world's first such zone in 1950 in North America. So far, more than 20 countries and regions have established these zones, including the US, Canada, Australia, Japan, South Korea, the Philippines and Vietnam. Since it is too late to respond to a possible threat when the aircraft has already flown near territorial air space, there is a necessity to have a cushion by setting up such zones.

Will unreported entry to the zone bring conflicts?

Setting up the zone will not cause conflicts. Instead, by introducing transparent measures, the zone will reduce risks. If an aircraft flies in without violating international laws, China will not use its force. If aircraft fly in during military drills, Chinese jets will monitor and fly alongside them.

Is China the one changing the regional "status quo"?

It is groundless to blame China for changing the status quo by establishing its first air defense zone. If the "status quo" refers to the dispute over the Diaoyu Islands, it would have never been changed without the Japanese government's unilateral moves to "purchase" and "nationalize" part of the islands last year. It is Japan who is worsening the stability in East Asia.

China Daily

(China Daily 11/28/2013 page1)