As part of our end-of-year review looking into the biggest decisions of 2022, we look at how Putin's invasion of Ukraine plunged Europe into its biggest security crisis since the Second World War. Just a few days after Putin ordered troops to cross the border into Ukraine, German Chancellor Scholz declared a historic reversal of decades-old policy and a 100 billion euro fund to bolster Germany's armed forces. After leading the UK out of the EU, Boris Johnson suddenly became one of the continent's biggest advocates for defense, spearheading much of the response to Ukraine. And old attitudes to Russia and the West were suddenly reevaluated around the world. The Economist's Anne McElvoy, Prashant Rao of Semafor, and BloombergTV's Maria Tadeo joined One Decision for a look at how the Ukraine war has changed the political map for Europe.