23 Mar 2015
The neorealist theory of international relations has dominated world politics in the past century. It depicts an anarchic world where states are compelled to act in a certain manner because they are part of an anarchic international system. Although neorealism provides an appealing exposé for the study of international relations and perceives itself to be an improvement over classical realism, it raises more questions than the answers it provides as I will show throughout this essay.
Classical Realists believe that states are the main actors in international relations and they are power maximizers. As Hans Morgenthau, explains in Politics Among Nations, in a world where anarchy is the abiding principle, states will struggle for power because they are managed by policy makers and such is the nature of men. Other institutions and organizations are considered to play a small role but only within a state centric framework. States define international order as anarchic because there is no central government to quell men's search for power and their thirst to dominate others. In this eternal struggle peace is achieved through the balance of power, where states try to prevent one state from dominating all the others. 
During the Cold War a new variant of Morgenthau's theory appeared under the name of neorealism. The theoretical approach to international politics proposed by Waltz stresses the importance of structure and draws its arguments by applying an economic perspective to international relations. An approach Waltz claims to be more scientific than the one of Morgenthau and classical realism,which he considers to be "reductionist". He argues so because it focuses on the subjective decisions of policy makers, and their search for power, as key in shaping the international system. A perspective that excludes the possibility of a structural analysis where the system is perceived to be independent and therefore plays an active role in determining state behaviour. 
In a world still perceived to be anarchic, Waltz separates the internal circumstances of states from the external ones and claims that the international system is autonomous and acts as a whole. International order is shaped by a global structure, which is created by the interaction of states and then forces them into a certain modus operandi.  Whereas in Morgenthau the analysis of world politics focused on his negative view of human nature that compelled statesmen in an eternal search for power  , Waltz emphasizes the importance of the system in directing their actions.
The introduction of the third image systemic analysis as the most important perspective to look at international politics is defined by three ordering principles: anarchy, the function of units and the distribution of capabilities.  Anarchy for neorealists is slightly different than for classical realists. As Shimko notes it, if for Morgenthau anarchy was important but merely circumstantial, for Waltz it is one of the defining elements of the system and acts as a "causal" force.  The concept of anarchy also differs in the sense that classical realists believe states search for power and most neorealists tend to advocate that states fight to survive. The outcome in both cases is an anarchic world but their origin is fundamentally different.
The units that compose this anarchic system are deemed to be similar a perform similar actions in the international sphere and internal politics have no place in differentiating states. Although states perform the same functions they are distinguished from each other by their capabilities. The distribution of capabilities, seen mainly as military power, has the capacity to change the systemic order. As states' military power changes so does the international system. 
The ideas put forward by neorealists seem to provide an edge over classical realism, not only in the sense that they accommodate a more full fledged theory that, as Waltz points out, was not possible for classical realism;  but also because there is an evolution from the apparent subjective, intuitive and traditional views of Morgenthau to a more objective and scientific theorisation put forward by Waltz 
Thus far it seems that neorealism was able to provide an answer to the flawed reasoning of classical realists but, a more thorough analysis shows something different. One of the key points where this stands out is in the concept of power. For Morgenthau statesmen act "in terms of interest defined as power"  . This idea of politics should not be seen as a limited short-term objective for states and policy makers but, as Rosenberg explains, that the actions and interactions of states need to be perceived as a response to a certain balance in the distribution of power.  As we have also seen, under Morgenthau's perspective, states strive for power a condition which, inevitably, generates a competition environment between the multiple actors. The only way to maintain international order in such an environment is through a "balance of power" where "no one state or coalition is in position to dominate all the others."  However, this assumption implies, as Rosenberg argues, that we look at the "international scene" as nothing more than a collectivity of states and that the internal political sphere produces no effects in how states interact with each other. It is at this point that Morgenthau's argument becomes circular and loses some of it's strength. If world politics deals only with security issues and power is seen only in terms of military capacity, the idea of politics as "interest defined as power" becomes undeniable. 
Neorealism tries to answer this problematic with the introduction of the international system as the prime director of state behaviour. However, the mechanical structure introduced by Waltz only sees power as military capacity and fails to account for transnational power: the system continues to be a mere group of interacting states. Since for neorealists international politics only has to deal security issues, the argument becomes circular again in a sense that Waltz's structure is only applicable to a system that only regards power as military. 
Despite the many proposed advances on classical realism, Neorealism also provides few changes as far as the concept of anarchy is concerned. It is true that it assumes a conducive role, in the international system, instead of a permissive one but no greater development is introduced in this area. Waltz sees the concept of anarchy in the international realm as the lack of a central power that can exercise force, the same way states exercise it inside their own internal sphere, which leads to a competitive environment among equal sovereign actors.  The problem with Waltz's concept of anarchy, as Milner argues, is that it collides with one of the ordering principles of his theory for the international system: the idea that a states' capabilities are a differentiating factor.  If states have different capacities they do not compete on equal grounds and do not assume the same posture towards each other. Waltz's third ordering principle leads us to conclude that states perform different functions and that there is a separation between small powers and great powers, with the latter assuming a more important role. These differences suggest that the world cannot be seen as a perfect market where there is a competition between similar players but more like a monopolistic or oligopolistic one, where one or more units have risen above the rest.  As Milner concludes, these types of markets are characterized by instability, balance between the dominant actors and strategic interdependence, which seem to "function more like the international system than perfect markets".  This different perspective provides a less narrow view of the international system and one that can provide additional areas of investigation. The idea of "strategic interdependence" suggests a more intricate network of communication between actors and is invariably dependent on norms and practices that need to be established not only in the international sphere but also at a national level. The excessive importance given to the "ambiguous" concept of anarchy leads neorealists to the "radical separation between domestic and international politics"  , which can be dangerous in such a state-centric theoretical approach to international relations.
The idea of the state as an uncontested actor in international politics is one other that stands out in neorealist thought. Theory is centred on the state and it offers no reasoning for its formation. As Ashley puts it, for neorealists:
"The state must be treated as an unproblematic unity: an entity whose existence, boundaries, identifying structures, constituencies, legitimations, interests, and capacities to make self-regarding decisions can be treated as given, independent of transnational class and human interests, and undisputed (except perhaps by other states)." 
In this paradigm, states simply exist in the world of international relations, with no theoretical explanation for how or why they are formed; or why they are the sole actors of the international system. An assumption that for neorealists requires no defence but that is problematic because it draws away from their proposed objectivity. Despite criticising classical realism's traditional and conservative approach, neorealists seem not to mind the "metaphysical commitment" they make to the state-as-actor assumption that "exempts it from scientific criticism" 
If in classical realism the notion of the state as the main actor in world politics was already problematic - because it excludes the possibility of domestic and transnational institutions taking on a role in international relations (one need only to look at the September 11 attacks in the USA and the Arab Spring in the Middle East to recognize their importance) - seen through the scope of neorealism the problematic extends even further. According to classical realism, raison d'etat is the guiding principle for state behaviour and the interests of statesmen, in international relations, are those that maximize the state's power and influence, in order to preserve its "health and strength"  . Statesmen are encouraged to pursue their interest with respect towards the international order and with ethics and morals always under consideration. The reasoning of Meneicke suggests that the preservation of the state and it's political structure - ergo it's identity - play a role in defining it's behaviour, even if it is a slight one. In neorealism, the identity of the state is not taken into account in the proposed structuralist analysis. As Ruggie mentions, "change" at a unit level is unaccounted for.  Differentiation between states is only understood in relative terms - state's capabilities are only seen in relation to those of other states and, as we have seen before, power is measured in military capacity. Ashley picks up on Ruggie's work and explains that his argument is not recognized by neorealists because the "identity of the state" is taken for granted and seen as "unproblematic".  As Ruggie concludes: "only structural change can produce systemic change"  . In sum, even though units define the system, only an alteration in their relative capabilities can generate a change in the reigning structure. Internal change continues to play no role in this analysis.
The state-as-actor problematic was one that was most emphasized with the failure of neorealism to predict and explain the end of the Cold War, one of the most important events in world politics of the last century. The work of Friedrich Kratochwil is very helpful in understanding this failure as he points to three different areas where neorealism was "embarrassed", mainly due to its incapacity to account for changes within the state, other than those that concern military capabilities.  If we look at the Soviet Union's military capacity before, during and one year after the events of the perestroika and the glasnost, we find that there was no decrease in the USSR's capabilities that could account for such a systemic change in the international realm as advocated by the structural analysis of neorealism. Defence spending did not increase in the 1980s and even if we accept the argument of economic pressure on the Soviet Union, there is no explanation in Waltz's theory for why and when such transformation occurred.  The dissolution of the Soviet Union, the fall of the Berlin Wall and the reunification of Germany had all derived from a turning point in the Kremlin's domestic politics, with change coming from inside the USSR rather than as the outcome of structural pressures on the country, as neorealists would suggest.  The third and last argument made by Kratochwil is that realist US foreign policy makers had already predicted that a change in the international system, that was in place during the Cold War, would only occur through "domestic change".  Although neorealism portrayed itself as as more scientific perspective of international relations it failed where practice and experience were successful. The issue is also referred to by Ashley when he argues that neorealism denies the importance of practice, adding that "people are reduced to some idealized homo oeconomicus, able only to carry out, but never to reflect critically on, the limited rational logic that the system demands of them."  Kratochwil argues that the events that took place in 1989/1990 are better explained by a legitimization crisis communism that made the Soviet Union look at Western Europe success in maintaining peace. The fall of the Berlin Wall and consequent reunification of Germany can, therefore, be perceived as a move that the USSR saw would "serve its own security interests better than a Germany wandering between East and West.  Although these events cannot be comprehended through the systemic scope of neorealism, the interest approach of classical realists could have been able to predict such a move.
I conclude that the neorealist systemic approach to international relations does indeed provide an additional analytical edge over classical realism in the sense that it introduces the systemic influence on state actors. However it focuses too much of its attention on the third image and disregards the actions of states and statesmen. Although classical realism cannot be seen as a credible theoretical alternative to neorealism because of the many flaws it contains, it does provide some insight in the first and second image analysis. As I have also demonstrated, neorealism chose not answer some of the more problematic issues in realist thought, such as the concepts of power and anarchy, and is still unable to provide a theoretical explanation for the state as the main actor approach. It is a small improvement over classical realism but one that needs further development in order not to repeat failures such as the incapacity to predict or explain the end of the Cold War.
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