The object of China's strategy is inexorably to supplant the United States as the world's premier economic power, and if necessary, to defeat us militarily.
For some reason, I grew up generally believing that Japan and Korea were quite friendly. I do know that there is some bad history and the extremists on both sides are unreasonable.
The language of the younger generation has the brutality of the city and an assertion of threatening power at hand, not to come. It is military, theatrical, and at its most coherent probably a lasting repudiation of empty courtesy and bureaucratic euphemism.