Read the other posts in the thread. It should help.
I am quite familiar with the self-justifying claims of the Russians. They are, however, all nonsense. Russia, and Russia alone, started this war (back in 2014) because Putin and many other Russians have not reconciled themselves with Ukrainian independence. They view Ukraine as rightly a part of Russia and saw a chance to conquer it because of Biden’s weakness. All the excuses that Russia has made are just attempts to cover this simple truth. But I am amazed that there are so many who are willing to accept these excuses and justify Russia’s invasion.