Actually they are ambitious, most Russians don't have interests in China.
USA can't do shit to China except some under table dirty scheme in 1989 cause we are not land connected with them. All the suffering of China in the past 50 years was somehow related to Soviet: 1962 war with India, great famine in 1960,1979 war with Vietnam. In the whole 1970 and 1980s, Soviet tied down 60% of PLA army along the China~Russia border. As long as Soviet support those small nations around China, we can't leave in peace. Russia is the biggest weapon suppliers to Vietnam and India.
The fine relationship is temporary and will go to hell when Russia recovers from recession.
Very happy to see Putin and Trump bite each other.
When it comes to national security, China only trusts Pakistan.
人畜无害的国家,而且人种比老毛子纯多了。
They may be ambitious but they aren't making or selling products to make ends meet. They rely heavily on selling natural resources and weapons. That alone is not enough to build them back up. They may not be interested in China but they certainly don't want a strong China.
Don't under estimate the US, it's a very resilient country, China on the other hand is not. The US has a working system and it's surprisingly working fine so far. As long as that system works it doesn't matter who is in charge of the US, the US will continue to move ahead. However, I do think the US is slowly declining but it's still going to be a strong country for the foreseeable future. No country can do anything to China from outside, the danger is always from within.
Yes, I studied Chinese history so I know very well what happened to China. India and Vietnam can't compete with China. Vietnam shot themselves in their foot by allowing wages rising too high & too fast. They had the chance to be the next world factory for cheap and low quality products. Now they shut the door on themselves. India has no good infrastructures, and just relying solely on IT outsourcing ain't gonna help them build a sound and balanced economy. Lee Kuan Yew had a high hope for India and wanted to use India to balance China's raising power. In the end, he was greatly disappointed and understood clearly that his wish would never be realized. Think about it, a country has billions of people but has no one national language to bridge its people together. How can India implement policies successfully across the country if the gov can't even communicate with its citizens. Let them buy more weapons, that will only hurt their economy and people even more.
It'll take Russia a long long time to recover. My Russian co-workers showed me pictures of their cities, absolutely dilapidated. High inflation and low wages in their main cities. Corruptions everywhere & gangsters extort money from businesses rampantly. Men drink themselves to death; their population is also dying fast. The whole country is held together by one strong man, Putin. What will happen to Russia if Putin is gone? Russians themselves ask that question.
Sure, Russia could back-stab China when they recover. China could return the favor by leveraging Ukraine and surrounding countries against Russia. If Russia wants to play that kind of games, China can definitely go toe-to-toe with Russia.