I have been trying to think of the sort of "job advertisement" that the Chinese might have come up with to tempt "Top-Gun" "exRAF/Western Pilots" to China without making it obvious that they wanted to learn how Nato operate. Apart from the offer of a high salary the pilots must have been told something to convince them. Perhaps China emphasised that they were eager to learn from the best Western pilots or perhaps they emphasised that they were in such fear of their neighbours they needed help to improve their defences?