Introduction
Economic globalisation, characterised by increased trade, investment, and financial flows across borders, has been a dominant feature of the international system since the late 20th century. This essay evaluates whether such interdependence reduces or heightens the likelihood of international conflict, drawing on perspectives from economics and international relations. Proponents, rooted in liberal theory, argue that economic ties foster peace by raising the costs of war, while critics, often realists, contend that globalisation can exacerbate tensions through competition and inequality. The discussion will examine both sides, incorporating historical case studies and contemporary examples, before concluding with an evaluation. This analysis highlights the nuanced role of economics in global stability, particularly relevant in today’s interconnected world.
Arguments for Economic Globalisation Reducing Conflict
Liberal theorists have long posited that economic interdependence promotes peace by creating mutual benefits that discourage aggression. Indeed, the idea traces back to thinkers like Immanuel Kant, who suggested that commercial ties could bind nations in a ‘pacific union’ (Kant, 1795). In modern terms, this is supported by empirical studies showing that higher levels of trade between countries correlate with lower incidences of militarised disputes. For instance, Oneal and Russett (1997) analysed data from 1950 to 1985 and found that economically interdependent democracies are less likely to engage in conflict, as trade disruptions would impose significant economic costs on both parties.
A key mechanism here is the opportunity cost of war: globalisation integrates supply chains and markets, making conflict economically irrational. The European Union (EU) serves as a historical case study; post-World War II integration through the European Coal and Steel Community in 1951 evolved into deep economic ties that have arguably prevented intra-European wars for decades (European Commission, 2023). In today’s world, this is evident in the relatively peaceful relations between major trading partners like the US and Canada, where bilateral trade exceeds $600 billion annually, arguably deterring escalations. Therefore, globalisation can reduce conflict by aligning national interests through shared prosperity, though this assumes rational actors and symmetric benefits.
Arguments for Economic Globalisation Increasing Conflict
Conversely, economic globalisation may heighten conflict risks by intensifying competition and creating dependencies that can be weaponised. Realist scholars argue that economic ties do not override security concerns; instead, they can fuel rivalries when resources are scarce or unevenly distributed (Waltz, 1979). Globalisation often leads to economic disparities, where stronger nations exploit weaker ones, breeding resentment and potential violence. For example, the globalisation of the early 20th century did not prevent World War I, despite high trade levels among European powers; interdependencies in finance and resources arguably amplified tensions, as seen in the naval arms race between Britain and Germany (Copeland, 2015).
In contemporary contexts, US-China trade relations illustrate this dynamic. While bilateral trade reached $690 billion in 2022, escalating tariffs and technology restrictions have heightened geopolitical friction, with both sides viewing economic dominance as a security issue (Office of the United States Trade Representative, 2023). This suggests that globalisation can increase conflict likelihood by fostering ‘trade wars’ that spill into military domains, particularly in strategic sectors like semiconductors. Furthermore, asymmetric interdependence—where one nation relies more heavily on another—can enable coercion, as Russia demonstrated by leveraging energy exports to influence European policies before the 2022 Ukraine invasion. Thus, while globalisation connects economies, it can arguably amplify vulnerabilities and rivalries rather than mitigate them.
Conclusion
In evaluating the impact of economic globalisation on international conflict, the evidence presents a mixed picture. On one hand, liberal arguments and cases like the EU demonstrate how interdependence can reduce conflict by elevating the costs of disruption and promoting cooperation. On the other, realist critiques and examples such as pre-WWI Europe or current US-China tensions highlight how globalisation can exacerbate inequalities and strategic competitions, potentially increasing conflict risks. Ultimately, the outcome depends on contextual factors like power symmetries and institutional frameworks; globalisation neither guarantees peace nor inevitable war but amplifies existing dynamics. In today’s world, with rising protectionism amid events like the COVID-19 pandemic, policymakers must balance economic integration with safeguards to minimise conflict potential. This nuanced understanding underscores the limitations of viewing economic ties as a panacea for global stability.
References
- Copeland, D.C. (2015) Economic Interdependence and War. Princeton University Press.
- European Commission (2023) The History of the European Union. European Commission.
- Kant, I. (1795) Perpetual Peace: A Philosophical Sketch. (Translated edition, 2003) Hackett Publishing.
- Office of the United States Trade Representative (2023) 2023 Trade Policy Agenda and 2022 Annual Report. USTR.
- Oneal, J.R. and Russett, B. (1997) The Classical Liberals Were Right: Democracy, Interdependence, and Conflict, 1950–1985. International Studies Quarterly, 41(2), pp. 267-294.
- Waltz, K.N. (1979) Theory of International Politics. Addison-Wesley.
