China sent fighter jets into its newly claimed -- and hotly disputed -- air defense zone above the East China Sea on Thursday, the same day that Japan's military firmly insisted its own patrols over the area wouldn't stop because of Beijing's declaration.
On Thursday, Japanese Chief Cabinet Secretary Yoshihide Suga said his nation's Self Defense Force has used ships and planes to patrol and conduct surveillance in the East China Sea since before China claimed the air defense zone that covers much of the sea.
And they wouldn't stop, he insisted.
"We have no intention to change this operation in consideration for China," Suga told reporters.
Japan isn't alone in disobeying China, which has warned military measures could be taken if planes entering the zone fail to identify themselves and submit flight planes to Chinese authorities.
Two unarmed U.S. B-52 bombers recently flew through the area in what the U.S. State Department characterized as a planned military exercise. (source for above quotes)
China has claimed extended territorial waters as a way to deny Japan's claim on an island lying between the two countries.