The global legal order as we know it today developed largely to accommodate and facilitate the modern state system that arose in the wake of the 1648 Treaty of Westphalia. As a result, international law consists primarily of international agreements1 and customary rules arising out of state practice and recognition.2 States still remain the primary subjects of international law today, but they are increasingly joined by other actors on the global stage, including international organizations and individuals–and the global legal order has struggled to adapt and adjust.
The International Human Rights Regime and Supranational Regional Organizations: The Challenge of the EU,
Mich. J. Int'l L.
Available at: http://repository.law.umich.edu/mjil/vol36/iss1/4