East China Sea East China Sea

A Chinese J-10 fighter jet, the same model that intercepted U.S. aircraft earlier this week over the East China Sea, takes off from a runway in mainland China in 2014. Johannes Eisele/AFP/Getty Images hide caption

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Johannes Eisele/AFP/Getty Images

A pair of Chinese SU-30 fighter jets, like those pictured right, intercepted a U.S. Air Force WC-135 Constant Phoenix aircraft, like the one pictured left, on Wednesday over the East China Sea. AP hide caption

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AP