This week marked the 10th anniversary of NATO’s expansion into the former communist countries of Central and Eastern Europe. Their inclusion into NATO helped stabilize the region, consolidate democracy, and firmly put these countries on the path to membership in the European Union. Yet, after eight years of neglect from Washington, the Alliance is struggling to redefine itself to address the challenges of the 21st century.There were important signs this week that efforts to reinvigorate the Alliance are beginning