Reuters
With sleek looks mirroring the U.S. UH-60 Black Hawk, the Chinese military's advanced Z-20 helicopter packs a punch but may make its biggest impact at sea, analysts said as it was displayed at China's biggest air show in Zhuhai on Tuesday. State media recently highlighted the first armed assault version of the helicopter, and on Tuesday the military showcased the Z-20J armed naval variant - a key step towards a full-blown anti-submarine platform, the Z-20F. Although China is fielding ever-more advanced warships as part of its long-term military modernisation, it struggles to shield them, including its emerging aircraft carrier fleet, from undersea attacks - a capability already finely honed by many of its rivals.