Eighteen months into Vladimir Putin’s war on Ukraine, two things seem clear. First, the war matters. After 15 years of failed Western responses to Russian aggression against Georgia and Ukraine, another failure to contain and deter Russia would have catastrophic consequences around the world.

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An Air Force Global Strike Command unarmed Minuteman III intercontinental ballistic missile launches during an operation test on February 23, 2021, at Vandenberg Air Force Base in California. (US Space Force)