What’s covered in this cheat sheet
This infographic covers the core content of Unit 4: state vs. nation vs. nation-state; political boundary types (physical, geometric, superimposed, relic, cultural); state shapes (compact, elongated, prorupted, perforated, fragmented); centripetal and centrifugal forces; devolution; supranationalism and the EU; gerrymandering (packing and cracking); stateless nations; and geopolitical models including the heartland theory.