I think a lot of American planners expect the next war to be against China more than Russia, most likely as part of efforts to reclaim Taiwan militarily. Whether that actually happens or not, China seems to be trying to build a military that can win against the U.S., either by matching strengths or some more asymmetric means. I think I saw a story recently that China was constructing mockups of American navy ships in a desert that seem to be for war gaming, as an example.