If China wants to expand, she(?) will have to fight. If China wants to fight, it will have to take or destroy numerous lands, Islands and Island chains.
The Philippines, the US, Australia and Vietnam have pretty much got to be on the top of the list. Japan, the Marianas and New Zealand are probably going to receive a bit hate mail as well. Possibly visitors. The rude, angry, ugly, line you up against a wall and shoot you kind. Wait! That’s not true. They won’t bother lining you up
IMO, anyone who doesn’t believe this to be so is not minimally aware of Geography, History and the Military Arts. Either China attack Russia to size land or she attacks her neighbors for land and resources. Basically armed robbery, but on a national scale.