Chinese military activity near islands covered under the U.S.-Japan defense treaty resulted in a record number of Japanese fighter aircraft responses in recent months, Japan Defense Ministry officials say.
The Japan Air Self-Defense Force scrambled jets against Chinese aircraft about 200 combined times in April through June, compared with 114 incidents during the same period last year, defense officials told broadcaster NHK during a news conference Thursday.
Adm. Katsutoshi Kawano, chief of staff for Japan’s forces, said most of the incidents came near the Senkaku Islands, which have been administered by Japan since the U.S. returned them, along with Okinawa, in 1972.
In recent years, China has asserted what it calls an “indisputable” claim to the uninhabited islands, which it argues should have been returned along with Taiwan following World War II.
The U.S. takes no position on any future sovereignty settlement. However, during a 2014 visit to Japan, President Barack Obama said the security alliance calling on the U.S. to defend Japan when under attack “covers all territories under Japan’s administration, including the Senkaku Islands.”
While some of the scrambles occurred after Chinese military aircraft flew within Japan’s airspace, such operations tend to happen most often as a precaution to a potential border breach.
Kawano added that Chinese aircraft and ships near the Senkakus appear to be escalating their operations, according to NHK.
Japanese responses to Chinese actions have risen annually since 2008, but jumped exponentially after Japan agreed to nationalize the once privately held islands in September 2012.
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