China did not miss the opportunity that the Second Great Depression brought it. The general collapse of the Western economies gave China a chance to expand without minimal resistance, and they quickly took over many nations bordering them. Taiwan, Korea, and even Japan fell to their advance in short order. As did most other nations in South East Asia short of India itself. They even took over much of Indonesia before the Western Alliance managed to make a stand and stop them short of conquering Australia. That and India would have been the feathers in their cap, but China demurred when heavy resistance crystallized. It would take them generations to digest the nations they had already conquered. They were content to look to the future with that.