Anarchic international system realism (we somehow seem to acheve order without an authority, global governance) , how much power does your country posses relative to others. Conflict prone international system, how we manage international system, balance, peace. League of nations and collective security: doctrine of collective security, we live in an anarchic international system, sovereignty is important, threat of threat of punishment promotes relative peace and prosperity. Neoliberal institutionalism: not necessarily peaceful, believe we live in an anarchic international system, no such think a world gov, also believe in interdependence, as long as eco intertwined with one another promotes security and stability. Rules part of the euro zone need to demonstrate that no high debts . Un system of states: not a world government, but closest thing to it. To maintain international peace and security, and to that end: to take effective collective measures for the prevention and removal of threats to the peace .