Why does Russia dare not use strategic bombers?

Strategic bombing is a military strategy used in total warfare. The goal is to destroy the nation's ability to wage and sustain war, both materially and psychologically. Strategic bombing is the systematic organization and execution of aerial attacks. Strategic bombing itself is different from the tactical aspect of bombing. The goal of bombing is to focus on the achievement of strategic goals. The tactical aspect considers the details of when bombers, missiles, etc. attack a given target.