China is building aircraft carrier battlegroups and plans to deploy them not only in the disputed East and South China seas, but also to protect the country’s overseas interests. Rear Admiral Yin Zhuo, who served as a national political adviser and sits on the navy’s advisory board on cybersecurity, told the state-run Xinhua News Agency that building aircraft carriers served to “defend China’s sovereignty of the islands and reefs, maritime rights and overseas interests”. The defence ministry confirmed this year that China was building its second aircraft carrier, its first wholly home-made one. Xinhua mentioned China’s growing interests overseas, including...