The balance of power can help us to understand the changing international order, from unipolar to multipolar. It has been and continues to be the foundation for international stability, trade, monetary exchange, and global human interaction and travel. Without the balance of power providing a check on state power ambition, the globalization experiment could quickly come to an end. The world benefits from the presence of nuclear weapons given the expense of war. The potential for extreme destruction by nuclear weapons, means that their mere presence benefits the world as a deterrent from war. Although a precarious balance, nuclear weapons make war too expensive and diplomacy cheaper and more attractive. States resort to diplomacy to solve differences because there are major difficulties keeping war limited, not exploding onto nuclear fronts. This has not always been the case. World War I was a fatal explosion of conflict stemming from conflict over interest since the last Napoleonic War that birthed the ever-expanding German Empire. Among other options, war remain an expensive yet fruitful option (for the winner at least), and completely disastrous for the loser. This section seeks to highlight a few theoretical innovations derived from the study of the international system’s balance of power. In doing so, we will try to understand the mechanisms by which states seek survival outside of internal balancing, the building of arms in a state. Defining the balance of power is essential to understand the complications emerging from weak state grand strategy. In other words, weak state grand strategy (security behavior) destabilizes the balance of power.
Balance of power
A logical beginning to any scholarship in International Relations and the balance of power would be the work of E. H. Carr. Carr understands world politics to be a struggle between those states that have power and those states without power; the haves and have nots. Most interesting are those circumstances of stagnating status quo powers versus rising powers (Carr 1978, 214). Carr here does not discuss balancing, but diplomacy and appeasement, in an attempt to avoid war; or at least balance those choices: force and appeasement. He writes:
… the defense of the status quo is not a policy which can be lastingly successful … the realist view of peaceful change in an adjustment to the changed relations of power; and since the party which is able to bring most power to bear normally emerges successful from operations of peaceful change, we shall do our best to make ourselves as powerful as we can.
(Ibid., 222)
Carr understands that power is necessary to protect interests and position. Within the perpetual struggle to maximize power is the inherent need to protect it. Therefore, peaceful change is better than war according to Carr. In other words, “… peaceful change can only be achieved through a compromise between the utopian conception of a common feeling of right and the realist conception of a mechanical adjustment to a changed equilibrium of forces” (ibid., 223).
From the same Classical Realist perspective, Hans Morgenthau defines the balance of power as:
The aspiration for power on the part of several nations, each trying either to maintain or overthrow the status quo, leads of necessity, to a configuration that is called the balance of power and to policies that aim at preserving it.
(Morgenthau 1985, 187)
According to Morgenthau, the power of one state must be checked against the power of another to maintain stability. Through diplomacy, states can create alliances to combat or curb imperialist practices of a third state. Alliances are the “most important manifestation of the balance of power” (ibid., 1). Through defeat, one state could be potentially annexed to its victor, increasing its power and influence relative to other states. The balance of power tries to: “maintain the stability of the system without destroying the multiplicity of elements composing it” (ibid.). In this way, a variety of independent states can exist, protecting and representing the interest of diverse peoples. As a result, the practice “… signifies stability within a system composed of a number of autonomous forces” (ibid., 188). Gärtner builds on Morgenthau’s definition of alliances saying these are:
… formal associations of states bound by the mutual commitment to use military force against non-member states to defend member states’ integrity. Alliances call for the commitment of all participating states to take effective and coercive measures the use of military force, against an aggressor.
(Gärtner 2001, 2)
In an environment of anarchy, power is an essential force that protects a state’s right to exist independent of foreign forces, prevents the rise of global empires, and prevents war between states.
Moving from Classical Realism to Structural Realism, Kenneth Waltz in Theory of International Politics agrees with Morgenthau’s conception of the balance of power as a force that guarantees global security. According to Waltz, sovereignty and autonomy as essential to states bent on protecting their independence, its ability to
… decide[s] for itself how it will cope with its internal and external problems … States develop their own strategies, chart their own course, make their own decisions about how to meet whatever needs they experience and whatever desires they develop.
(Waltz 2010, 96)
Balancing or bandwagoning with a powerful state is a form of external balancing which enhances survival for that state. Balancing is usually a strategy chosen by stronger powers, whereas bandwagoning conversely is for the weak. Regardless, the strategy of choice boils down to the state’s need to survive given the threat of a growing power. In a system that forces states to help themselves (self-help), the balance of power brings assurances of increased security to states facing threats to survival. Such an arrangement allows for stability in a system defined by confrontation, conflict, and anarchy.
Walt builds on previous work, looking at alliances created through responses to threats (Walt 1985). Like Waltz, Walt illustrates that balancing is done by great powers to curb the expansion of other great powers. The reason the United States sided with China in the 1970s was to balance against the Soviet Union, which was more powerful than China at the time. For example, in the 1970s the United States sided with China to check the power of an expanding Soviet Union (ibid., 6). Bandwagoning is alliance behavior usually reserved for the weaker states. Walt lists several factors that may influence a state’s decision to balance or bandwagon. These include aggregate power, proximity, offensive capability, and offensive intentions (ibid., 9–13).
Randall Schweller, in his article “Unanswered Threats: A Neoclassical Realist Theory of Underbalancing,” describes non-balancing behavior such as buck-passing, appeasement, engagement, distancing, hiding, and bandwagoning as a form of great power behavior. These behaviors may also be known as underbalancing during times of systemic instability, that is, when revisionist powers are seeking to overturn the system. Specifically, underbalancing may occur when
… the state does not balance or does so inefficiently in response to a dangerous and unappeasable aggressor, and the state’s efforts are essential to deter or defeat it. In this case, the underbalancing state brings about a war that could have been avoided or makes the war more costly than it otherwise would have been.
(Schweller 2004, 168)
The article goes on expands to explain the domestic factors that result in underbalancing, a dangerous strategy for all states involved. This book will argue the danger of underbalancing as a force which may bring war if states do not pursue the correct strategies.
John J. Mearsheimer in The Tragedy of Great Power Politics also discusses a variety of strategies states use, not only to survive, but to dominate as regional hegemons. This book on Offensive Realism takes the notion of the zero-sum game of international politics to a new level. Mearsheimer claims that:
status quo powers are rarely found in world politics, because the international system creates powerful incentives for states to look for those opportunities to gain power at the expense of rivals, and to take advantage of those situations when benefits outweigh the costs.
(Mearsheimer 2001, 21)
All states are thus revisionist. Given this, it can be assumed that all states are revisionist by nature. Such a system is in constant flux as balance is rarely achieved.
This book builds on contemporary balance of power research. For instance, Brooks and Wohlforth (2016) and O’Hanlon (2019), admit multipolarity but they recommend that the United States not retreat from world order. The United States still possesses many levers of military, economic and soft power. They warn retrenchment would hurt power projection. The authors Both Brooks and Wohlforth (2016) and O’Hanlon (2019) recommend that the United States remain globally engaged as a way to protect interests and position. Richard Haass in his book “A World in Disarray” (2017), provides an excellent overview of this transition, recommending multilateral bargaining as the United States can no longer support the international system. This leads to the arguments made by Thomas Wright (2017). He argues that the world order is actually regional orders supported by the United States. The rise of China and Russia is directly challenging American influence in these regional orders. However, the United States, as the founder of the liberal ideas that support the various regional orders, still plays an important role in protecting American influence and interests. Like Haass and Wright, Henry Kissinger (2014) explores the evolution of world order, emphasizing not only critical material understandings of power but ideational as well. He argues that the balance of power undergirds world order.
This book also discusses state strategies within the balance of power. Crawford (2011) recommends driving a wedge between alliances to preserve domination, especially weaker partners. Selective accommodation through bribery may help split potential external balancing efforts. On the other hand, Izumikawa (2018) recommends binding, bribing members of one’s alliance “to maintain or enhance an ally’s loyalty to their alliance” (110). Binding may ensure that weak states’ behavior reflects the great power sponsor. This book will illustrate this further, as weak states tend to break balance of power expectations. Effort must be put into maintaining...