I am not sure what you are talking about. It seems you are arguing how sanctions have made it impossible for Russian army to fix their vehicles in the short ter

I am not sure what you are talking about. It seems you are arguing how sanctions have made it impossible for Russian army to fix their vehicles in the short term because they need to import spare parts from sanctioning countries? I am pretty confident they have enough of them for whatever attacks they still plan to commit in Ukraine, and the only reason they are dropping their secondary objectives seems to be simply because they are realizing that that's not going to be realized (and that secondary objective seemed to have been "take Kyiv quickly and then pretend to be nice", but that has spectacularly failed, with huge losses on both side which only works against them). They are still dead serious in Eastern parts of Ukraine.