Crimea was not annexed by Russia,it was annexed by Putin.
"Russia" means Putin and his gang that are terrorizing most people living in Russia.
Look at that movie with "I am Russian occupant" that Rogozin post on his twitter account,how come from 150 million Russians,from which most likely at least 30-40 millions have internet access only about 111k liked the video on youtube?
https://www.youtube.com/watch?v=T65SwzHAbes
The video has more than 5 million viewers.
As already written,two demented persons made Russia so big:
Ivan the Terrible and Stalin.
At both orders were killed also lots of Russians,besides people of other ethnicities.
They were not happy with how many people they had to keep under terror and fear so they think to extend their "great and wise leadership" to other people ,so those also would feel the happiness and privilege to be lead by some blood thirsty tyrants.
What a Russian from Bessarabia told and is also cleared in this video,Putin has a "victory politics" he thinks he is some kind of great warrior and his mercenaries are some kind of great army.
See what declaration he gave,that he will occupy "....large territory in Europe" if he wants.
If Obama would have done same as Putin does and would have sent as "volunteers" some US snipers from US marine to Ukraine,to fight with Ukraine army,you would have seen how different things would have been.
Or if US would send 9-10 F16 and some instructors to Ukraine army,to teach Ukraine army pilots how to fly these jets,see what "rebels" will do than.
It is not worth to get involved in East Ukraine,a revolution will start sodon in Russia and Putin will get in jail,if not killed by the crowds.
Putin managed to make the most wealthy state from the world,as resources,bankrupt.
Russia is like this,because 85% of their exports is oil and since oil price dropped ,Russia economy has a huge problem.