Putin would definitely not avoid international condemnation in any scenario of Russian involvement in Ukraine. Donbass had a huge amount of best Ukrainian corp

Putin would definitely not avoid international condemnation in any scenario of Russian involvement in Ukraine. Donbass had a huge amount of best Ukrainian corps stationed, taking them out would take months in any scenario short of regime change in Kiev. This is what will happen now and there would be huge loss of human life from both sides (but especially Ukrainian once pocket around their troops is formed).