The document discusses the nation state system. It begins by arguing that nation states and their willingness to obey governments have enabled international relations. However, some scholars believe the nation state system is disappearing as states can no longer fully protect citizens due to modern weapons. The document then defines the nation state system according to Palmer and discusses how sovereign nation states interact to protect national interests. It traces the origin of the nation state system to the 1648 Treaty of Westphalia, which recognized state sovereignty. Key elements of the modern nation state are discussed as sovereignty, territorial integrity, and legal equality. However, the nation state system faces setbacks from factors like growing interdependence, regional integration, nuclear weapons, and the roles of public opinion and mult