Will Ukraine's "D-Day" bring an end to Russia's invasion?

I see a lot of projection from the US and a total lack of any ability and/or interest in seeing things from the perspective of another nation.

The stated objectives from the US are to weaken Russia as much as possible with partition and regime change as the long-term goal.

The assumption is that Putin has the same objectives for NATO countries. Western leaders have been shocked when that is not the case.