This document discusses three major challenges facing the global interstate system: national/identity movements, global economics, and neoliberal capitalism. National/identity movements, such as Scotland's referendum on independence from Great Britain and groups like Al-Qaeda and ISIS, can threaten state sovereignty. Global economics demands conformity to free market rules through organizations like the WTO and trade agreements. The rise of neoliberal economics since the 1980s, exemplified by Greece joining the EU and eurozone, has also threatened state sovereignty by placing conditions like austerity on countries during economic crises.