In this photo taken and released Friday by the Taiwan Ministry of National Defense, a Taiwanese Air Force fighter aircraft (left) flies near a Chinese People’s Liberation Army Air Force bomber. Taiwan’s President Tsai Ing-wen said this week that the island will step up security to respond to military threats from China. The watermark says “Military News Agency.”

In this photo taken and released Friday by the Taiwan Ministry of National Defense, a Taiwanese Air Force fighter aircraft (left) flies near a Chinese People’s Liberation Army Air Force bomber. Taiwan’s President Tsai Ing-wen said this week that the island will step up security to respond to military threats from China. The watermark says “Military News Agency.”