Until recently, free trade has been an underexamined topic in the fiel
d of political geography. This article argues that neoclassical concep
tions of political geography separate economic from political processe
s and therefore ignore the geopolitical consequences of economic polic
ies. Discourse theory is used to show how the pretensions of value-neu
trality and objectivity embedded in neoclassical trade theory obscure
the inherently geopolitical consequences for countries engaged in free
trade. A review of trade theory from the time of Adam Smith and David
Ricardo to the present show that free trade theory does not represent
a universal social scientific law with predictable outcomes. Rather,
free trade is a specific foreign policy that was used to promote econo
mic nationalism in England in the 19th century and economic continenta
lism in 20th-century North America. Free trade enhanced national sover
eignty in the 19th century and reduces sovereignty in the late 20th ce
ntury. A case study of the consequences of Canada-U.S. Free Trade Agre
ement on Canada is used to buttress this argument.