China's view on its new Air Defense Zone as expressed by the Foreign Ministry is that if European countries and Japan are entitled to set their own air defense zones then China should be able to set its own zone. The differences with Asian neigbors and the U.S. arises over the fact that this overlaps with the zones of S. Korea, Japan and Taiwan and also covers the area of the disputed Senkaku Islands. Other problems lie in the ambiguous wording and failure to share this information in advance with other countries. As it stands B-52's from the U.S. and Japanese planes entered the zone on Nov. 29, and Chinese fighter jets tracked the planes but there was no incident. U.S. civilian airlines have agreed to follow the rules set by China for the air defense zone, and the U.S. government says it will let the airlines make the decision to follow the zone. The EU protested the setting up of the new air defense zone.