On April 25, 2016 the Atlantic Council led a private workshop on Elements of NATO Deterrence in Warsaw, Poland. The event convened US and European policymakers, scholars, and business leaders for a high-level discussion on the challenges facing NATO on its eastern and southern flanks in the run-up to the seminal NATO Warsaw Summit and beyond. The discussion focused on developing actionable policy proposals for the United States, European countries, and other actors in the region to bolster military strength against long-term security threats.