
How should the United States respond to Russia's annexation of Crimea? That depends on the answer to two related questions: Does the Crimean annexation presage a new era of Russian imperialism in its near-abroad? More broadly, is the international community entering a new era in which great power coercive diplomacy supplants the supposedly rules-based liberal world order that the United States and its allies have painstakingly attempted to build over the last 70 years? If the answer to either is yes -- and, unfortunately, it probably is, with qualifications -- then U.S. policymakers need to do a much deeper rethinking of their national security strategy.











