Japan has upgraded a naval vessel with capabilities to fire long-range Tomahawk missiles, with the first firing test expected this summer – a move experts said would pose a security threat to China. The Aegis destroyer Chokai “completed modifications and crew training” in the US that started in October, “confirming its acquisition of Tomahawk missile launch capabilities”, Japanese Defence Minister Shinjiro Koizumi said on Friday. He said a ceremony marking the acquisition of these capabilities...