Here is an article from the Washington Times describing a little-known aspect of the new Global Arms Race: hypersonic weapons technology.
The Russian and Chinese political strategies differ somewhat. Russia likes to involve limiting American Technological Advantages through Arms Treaties. That approach saves them a ton of money. They just need to figure out what technologies we are currently studying. Do a little research. Build a prototype. Then get us to drop our efforts… wasting all of the money we’ve already sunk into the project. China has different ideas. They have an Imperialistic Mindset and dreams of global domination. And they have lots of money. So… building technology helps them compete not only militarily, but also industrially and improves their stature among nations who oppose or compete with America. Russia doesn’t have the industrial base that China has. Their Economy currently depends on oil and gas.