Chinese embassy bombing: Xi sends message by honoring martyrs in Belgrade 1999
Chinese supremo Xi Jinping took time out during his visit to Belgrade to place a wreath to commemorate the death of three Chinese journalists (well, perhaps journalists, perhaps intelligence officers accredited as journalists had info of downed US stealth plane?) killed in the 1999 bombing of the Chinese embassy during the NATO Yugoslavia operation.
http://www.atimes.com/xi-sends-a-message-by-honoring-3-chinese-journalists-killed-in-1999-belgrade-bombing/
Or possibly the Chinese "journalists" had intel on NATO
https://rense.com/politics2/hownato.htm