While there is now extensive literature related to the internationalization of post-secondary education in Canada, developments within K-12 public schooling have received much less attention. This article explores recent developments in international education in Canadian public-school systems, with specific attention to developments in Manitoba. In doing so, it argues that these developments incorporate three distinct policy interests -- trade, immigration, and education -- resulting in strong federal influences on provincial education policies and practices. The article examines two major international education initiatives: the recruitment of international students; and, the establishment of affiliate school agreements overseas. It argues that these recent developments reflect a particular notion of "the internationalization of public schooling" where a historical notion of "international education" as a learning-focused concept has been supplanted by an economic and market-driven notion that has trade and immigration considerations as its primary interests.