Drone swarms and stealth submarines are playing a growing role in modern warfare, yet aircraft carriers remain a symbol of military might. That can be seen in China’s investment in the warships, as well as other countries including France, Turkey, India and Japan. China’s naval fleet has been expanding at a rapid pace, with its fourth aircraft carrier fast taking shape, according to the latest satellite images of the shipyard in Dalian in the country’s northeast, where it is being built. Those..