In the context of Advanced Placement Human Geography, this term refers to countries that typically have less developed economies, weaker governments, and are often exploited by core nations. These nations are typically dependent on core countries for capital and have underdeveloped industry relative to those core countries. An example includes many countries in Sub-Saharan Africa that primarily export raw materials.
Understanding this concept is crucial for analyzing global economic patterns, political power dynamics, and the spatial distribution of development. It helps explain historical and contemporary inequalities between nations and provides a framework for understanding patterns of migration, trade, and resource exploitation. Historically, colonialism has played a significant role in creating and reinforcing this global structure, with former colonies often relegated to this status.