The document provides an overview of the physical, cultural, economic, and geopolitical geography of Sub-Saharan Africa. It notes that Sub-Saharan Africa has the world's youngest population, with over 40% under 15 years old. While the region has high rainfall, drought is common and per capita food production is declining in most countries. The region's economies rely heavily on agriculture and resource extraction, but have struggled with poverty, debt, and inadequate infrastructure. Sub-Saharan Africa faces ongoing humanitarian and security challenges.