That sounds super vague. Taiwan is economically integrated with China, so are South Korea and to a lesser extent, Japan. Vietnam is dependent on Chinese imports

That sounds super vague. Taiwan is economically integrated with China, so are South Korea and to a lesser extent, Japan. Vietnam is dependent on Chinese imports and they share a land border. Most of Australia exports go to China. At peace time this is just posturing. In time of war no one ever doubted Australia would be on the side of the US.