https://www.express.co.uk/news/uk/1473924/china-news-britain-aircraft-carier-south-china-sea-pacific-ocean-royal-navy But they were detected by anti-submarine sonar operators aboard the frigates protecting the Carrier Strike Group. Two 7,000-tonne Shang class submarines, which are armed with cruise missiles, were located by specialists in the operations rooms of HMS Kent and HMS Richmond as the carrier group left the South China Sea and moved into the Pacific ocean.…