How can neighbours that are geographically side by side be worlds apart politically, culturally, ideologically, and economically? In Frenemy Nations, Mary Soderstrom presents a unique perspective on the strife caused by the "narcissism of small differences" between neighbouring jurisdictions. She examines some of the world's odd couples, including Canada and the United States; Quebec and the rest of Canada; New Hampshire and Connecticut; Haiti and the Dominican Republic; Brazil and Spanish-speaking Latin America; Rwanda and Burundi; and many more. While geographical proximity can make for cordial relationships, colonial histories, language, women's roles, differing levels of education, and competition for resources can also lead to conflict.