China and Russian Alliance

It may seem unlikely that China would go into an alliance with Russia but there are strong evidences that suggest the contrary. China has a 2 year nuclear security pact with Ukraine which was signed in 2013. It bounds China not to use nuclear forces against Ukraine and to help it against any foreign threat. However, the relationship between China and Russia is one of the most strategic and powerful ones in the world. China is buying oil from Russia and in return it is getting heavy advanced weaponry. China is very strategically planning its next move in this issue. It is patiently waiting for the right time. As soon as it knows who owns Ukraine, it will come for its rescue and most probably it will sideline with Russia claiming it to be the rightful owner.