Insight by Culture

A single country cannot realistically occupy all of Russia because holding its vast territory would require roughly 13 million trained ground troops—far more manpower than the world's largest militaries can supply—making sustained occupation logistically and administratively unfeasible.
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When leaders are insulated and dissent is punished, decision-making relies on filtered information and amplified assumptions, which narrows strategic options and raises the risk of reckless miscalculation.