This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.
"Beijing is probably trying to signal to Washington: 'While we want to improve ties, we are also ever ready for sustained competition, using any means necessary,' without severely inflaming tensions," independent air-power analyst He Yuan Ming told the BBC.