The allure of the West has helped shape Russian history since Peter the Great three centuries ago. Now it’s shattering even older bonds with Russia’s neighbor, Ukraine. In 2013, a rebellion in Kyiv sparked by pro-European protesters seeking a decisive break from the nation’s Soviet past set in motion a chain of events that created the tensest standoff between Russia and the West since the Cold War. Russian President Vladimir Putin annexed Ukraine’s Crimean peninsula in 2014, proclaiming a duty