Most recent thing I remember about China is that they lost the claim to parts of the South China Sea to the Philippines(well, they didnt lose it because they never had it, they just said it was theirs a few years back). This pokes quite a big hole in their claims of aggressive border growth they've been going on about.
They clearly dont give a fuck about what an international court has to say
"China has said it will not accept a ruling against it in a key international legal case over strategic reefs and atolls that Beijing claims would give it control over disputed waters of the South China Sea."