Weisiger, AlexZarin-Rosenfeld, Jack2023-05-222023-05-222009-05-122009-05-12https://repository.upenn.edu/handle/20.500.14332/8752This study attempts a theoretical explanation for the United States' leadership on NATO enlargement, under the past three administrations.NATOsecurityClintonBushSocial SciencesPolitical ScienceAlex WeisigerWeisigerAlexThe Republican Security Logic of NATO EnlargementArticle