Realist and Liberal Approaches to International Politics

Realist and Liberal approaches to international politics, although the most prominent views on global politics, are conflicting in their ideologies. Realism in politics is the assumption that human nature is ultimately based on selfishness and on international terms, state-egoism leading to a potential for international anarchy. However, Liberalism although recognizing there is a development of selfishness, believes there is generally a basis for which harmony is found in common interests and cooperation rather than conflict.

Firstly, Realism can be related to the Billiard Ball Model as it demonstrates how nation-states collide and cause conflicts with one another rather than relying on interdependence. It is the belief or realists that international anarchy would ensue leading to bloodshed, conflict and open violence if not for the balance of power. The realist view, theorized by Thomas Hobbes is followed by theorists such as Kenneth Waltz (1924-2013) and Hans Morgenthau (1904-1980) describing the "political man as ultimately selfish, wishing to dominate others" and advocating the pursuit of national interest above moral values internationally. Realists believe state sovereignty should lie within the head of state.

Liberals, however, is a philosophy that promotes the idea of liberty and equality among nations closely linked to the Cobweb Model which illustrates how nation-states are connected and interdependent, this is the Liberal idea that is key to peacekeeping on a global level. Although since stripping the 'idealist' qualities since the 1970's, the Liberal approach is reliant on co-operation among states, using discussion, debate and negotiations with war only being the last resort. Theorists such as Thomas Paine (1737-1809) believed that "Government, in it's best state, is but a necessary evil" and promote the spread and influence of democratic power. Liberals believe that sovereignty should lie within IGO's or Intergovernmental Organizations as this is a way of ensuring interdependence and co-operations between nations and furthering liberal approaches such as collective security of global groupings such as NATO, and commercial liberalism in Trade Blocs such as the EU. Liberals believe in free trade and an open market as a "means of united and shared values among a common commerce culture." Furthermore, liberals also believe that democracy is key to peacekeeping as "two democratic states have never gone to war." (outlined in the Democratic Peace Thesis).

In comparison, there is an agreement between liberals and realists revolving around the values of mainstream politics, concerning that there is always an element of competition between states implying that sovereignty must always remain decentralized.

Ultimately, Liberal and Realist views are in stark contrast to one another, although there is a distinct idea that in modern politics, Liberalism is becoming very indistinct from Realism as the ideology evolves, the beliefs are still differing in their views on human nature, interdependence and global politics.