A Taiwan Hai Lung (Sea Dragon) class submarine taking part in drill in the East China Sea in April 2018, as part of a review by President Tsai Ing-wen of the navy's ability to defend Taiwan against attack. Photo: EPA
A Taiwan Hai Lung (Sea Dragon) class submarine taking part in drill in the East China Sea in April 2018, as part of a review by President Tsai Ing-wen of the navy's ability to defend Taiwan against attack. Photo: EPA