Because unless the world surrenders to Ruzzia they’ll come at us with their obsolete Soviet era military? What a pathetic and impotent joke!
Don’t trust the media in what Putin is doing. He used the older equipment to buy time as his factories were ramped up to produce the latest technology that the Russians know how to produce.
He used his old equipment, because they were write-offs anyway. So, why not use them and destroy Ukrainian war machines in the process?