Best comparison between Ukraine & Russia on internet is listed below . You would be able to take an idea in 1st glance that which country is more stronger than other. In this article you would read the strong & weak points of both states.
COMPARISON OF BOTH COUNTRIES IN TABLE FORM
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COMPARISON OF BOTH COUNTRIES IN PICTORIAL FORM
You can further read about the basic reasons behind Russian and Ukraine conflict by clicking below two links. These are two articles which are in English & Urdu both languages.
Ukraine vs Russia Crisis, How? why? Danger of WW3?
Russia Invades Ukraine! | Reasons Explained Behind this Attack of Russian Army
Great differance