In this article, Dr. Philip Kelly discusses the geopolitics of security concerns between the United States and Latin America. Kelly defines the various schools of geopolitics and, subsequently, the characteristics of traditional geopolitics. By breaking down the Western Hemisphere into three separate Americas—North America, Middle America, and South America—Kelly assesses each region and its unique geopolitical characteristics. Finally, the article addresses a number of geopolitical concepts that represent the structure of current Western Hemispheric security. In conclusion, Kelly suggests that South America ultimately remains a low priority in North American strategic security concerns, and posits that a united and prosperous Latin America isolated from Eurasian connections directly benefits North American security.