Regionalisation of World Politics

Concepts and Definitions

The regionalisation of world politics refers to the intensification of political, economic, and social interdependence among states within a specific geographic area, leading to the formation of regional institutions, agreements, and shared identities that shape international affairs alongside global institutions. Understanding this phenomenon requires distinguishing between several related but distinct concepts. A region, in Joseph Nye's formulation, is a limited number of states linked by a geographical relationship and by a degree of mutual interdependence. Regionalism is the political and ideological commitment to cooperate and integrate with countries in one's region - a common sense of identity and purpose among states in a geographic area, manifested through the creation of institutions and policies for collective action. Regionalisation is the process by which regions emerge and strengthen through increasing interactions; it may be organic and bottom-up, arising from trade and investment flows, or deliberate and state-led, responding to security imperatives. Regional integration refers to the deepening of cooperation between states through formal agreements and institutions, involving stages such as free trade areas, customs unions, common markets, and potentially full economic and political union.

Globalisation and regionalisation are not simply opposed processes. Globalisation denotes the widening and deepening of worldwide interconnectedness across economic, social, technological, and political spheres. Regionalisation, rather than undermining globalisation, frequently functions as one of its building blocks: regional arrangements provide the institutional infrastructure within which market integration, norm diffusion, and political cooperation can proceed more rapidly and with greater mutual trust than at the global level. The dominant scholarly consensus today treats the two as complementary and mutually reinforcing processes rather than rivals.

Why States Pursue Regionalisation

States pursue regional arrangements for a combination of economic, security, political, and identity-based motivations. The economic rationale is foundational: by integrating markets with neighbours, states can increase trade and investment, achieve economies of scale, develop regional value chains, and collectively attract foreign direct investment. The boost to North American trade under NAFTA - from roughly $300 billion to over $1 trillion between 1994 and 2011 - illustrates this dynamic. Regional blocs also provide greater bargaining power in global trade negotiations, allowing smaller economies to leverage their collective weight in ways unavailable to them individually.

Security provides a second major motivation. The European Union's foundational logic was to bind historically antagonistic states so closely together through economic interdependence that war between them would become unthinkable. Karl Deutsch theorised this outcome as a security community - a group of states among which peaceful resolution of conflicts has become so institutionalised that war is effectively ruled out as a policy option. Regional arrangements also allow states to coordinate defence, intelligence-sharing, and crisis management in ways that strengthen their collective security without the limitations of purely bilateral agreements.

Geopolitical considerations increasingly drive regional initiatives. Smaller states gain influence and protection by aligning with larger neighbours and speaking with a collective voice. Larger powers use regional leadership to extend their influence. Great-power competition generates its own pressure toward regionalisation: the United States has promoted the Indo-Pacific Economic Framework partly to counterbalance China's growing economic influence in Asia; India has championed BIMSTEC as an alternative regional architecture when SAARC stalled due to Pakistan-related tensions. Shared identity - whether cultural, linguistic, historical, or civilisational - provides a further motivation, as in the case of pan-Arab solidarity behind the Arab League or Islamic identity in the Organisation of Islamic Cooperation.

Theoretical Frameworks

The theoretical study of regional integration was inaugurated by Ernst Haas in The Uniting of Europe (1958), which developed neofunctionalism as the first systematic theory of the integration process. Haas argued against both classical realism - which held that states act solely to maximise power in an anarchic system - and liberal idealism - which naively hoped that law and diplomacy alone could secure peace. Neofunctionalism instead proposed that integration occurs when domestic societal groups and interest-based actors, including bureaucrats, business associations, and trade unions, perceive supranational institutions as better platforms for realising their goals than purely national ones. As integration succeeds in one functional area such as coal and steel, it creates pressure to integrate related sectors such as energy, transport, and eventually monetary policy. This dynamic, which Haas termed the spill-over effect, produces a self-sustaining logic of deepening cooperation that gradually shifts political authority and loyalty upward from national to supranational institutions. Haas later revised neofunctionalism to incorporate constructivist insights, acknowledging that interests and identities are not fixed but evolve through the experience of cooperation itself, and that integration can stall or reverse as well as advance. Haas's core question - how do sovereign states choose to become less sovereign? - remains the animating question of integration theory.

Karl Deutsch's contribution was the concept of the security community, derived from his study of transactions, communications, and mutual responsiveness among states in the North Atlantic region. Deutsch argued that when the volume of transactions - trade, migration, communications, tourism - between states crosses a threshold, it produces a pluralistic security community in which war ceases to be thinkable as a means of resolving disputes. The sociological and communicative processes of integration, not merely the formal institutional architecture, are what ultimately determine whether a region becomes a genuine community.

The distinction between old regionalism and new regionalism captures important historical shifts in how regions are organised. Old regionalism, the dominant form during the Cold War, was state-centric, top-down, and largely driven by geopolitical alignments within the bipolar order. Regional organisations in this phase served primarily as instruments of bloc cohesion, and economic arrangements tended to be protectionist. New regionalism, gaining momentum after the Cold War, is multi-dimensional, involving non-state actors alongside states, generally more open to the global economy, responsive to social and economic demands from within regions, and allowing overlapping memberships and variable geometry across a wider range of issue areas.

The European Union: The Standard of Deep Integration

The European Union is widely regarded as the most advanced example of regional integration in the world. Its origins lie in the determination of post-war European statesmen to prevent the catastrophic interstate conflicts that had devastated the continent twice in the first half of the twentieth century. Integration began in the coal and steel sectors with the European Coal and Steel Community of 1951, on the neofunctionalist logic that binding together the core industrial inputs for modern warfare would make future Franco-German conflict materially impossible. The Treaty of Rome of 1957 established the European Economic Community. The Single European Act of 1987 set the objective of completing the single internal market. The Maastricht Treaty of 1992 transformed the EEC into the European Union and established the framework for a common currency and common foreign and security policy. The Lisbon Treaty of 2007 clarified the division of competences, gave the EU full legal personality, and streamlined its institutional architecture.

The EU's institutional architecture uniquely combines supranational and intergovernmental elements. The European Commission proposes legislation and guards the treaties. The European Parliament, directly elected by EU citizens, co-legislates with the Council of the EU. The European Court of Justice ensures uniform interpretation and enforcement, with its doctrines of direct effect and supremacy of EU law establishing that EU law overrides inconsistent national law. Twenty member states share the euro and a common monetary policy administered by the European Central Bank. The Schengen Agreement enables passport-free travel across most of the EU.

The EU's achievements are substantial. It has maintained peace among its members for over seven decades - earning the Nobel Peace Prize in 2012. The single market, with a combined GDP of approximately twenty trillion dollars and four hundred and fifty million people, constitutes one of the largest economic units in the world; intra-EU trade accounts for roughly sixty percent of members' total trade. The EU speaks with a unified voice in the WTO, has negotiated major free trade agreements globally, and was central to securing the Paris Climate Agreement. Its structural and cohesion funds actively reduce development disparities between richer and poorer member regions.

The EU's challenges are equally significant. Brexit - the United Kingdom's departure in 2020, driven by grievances over sovereignty, immigration, and the democratic deficit of EU institutions - was the first reversal in the EU's history and energised Eurosceptic movements across the continent. The Eurozone crisis beginning in 2009 exposed the structural flaw of monetary union without fiscal union, generating severe north-south rifts over Greek and other sovereign debt bailouts. The 2015-16 migration surge strained free movement principles and fuelled nationalist politics. Russia's invasion of Ukraine in 2022 forced costly energy decoupling and underlined the EU's continued dependence on NATO for ultimate security guarantees.

ASEAN: Cooperation Through the ASEAN Way

The Association of Southeast Asian Nations was founded in 1967 by Indonesia, Malaysia, the Philippines, Singapore, and Thailand. ASEAN's founding logic was explicitly different from the EU's: rather than deep supranational integration, ASEAN sought to build a stable framework for regional coexistence among states that were profoundly sovereignty-conscious and politically diverse. The ASEAN Way - characterised by consensus decision-making, non-interference in domestic affairs, informality, and an aversion to legally binding enforcement - became the defining norm of the organisation. ASEAN expanded over five decades to ten members encompassing the whole of Southeast Asia.

ASEAN's achievements are considerable. It transformed Southeast Asia from a theatre of proxy conflicts into a region where differences are managed through dialogue. The Treaty of Amity and Cooperation of 1976 established principles of peaceful coexistence subscribed to by major powers globally. Intra-ASEAN tariffs have been reduced to near zero under the ASEAN Free Trade Area. Most significantly, ASEAN has established itself as the diplomatic hub of Asia-Pacific regional architecture: ASEAN Plus Three, the East Asia Summit, the ASEAN Regional Forum, and the Regional Comprehensive Economic Partnership - the world's largest trading bloc by population, concluded in 2020 - all flow through ASEAN centrality.

Amitav Acharya's concepts of norm localisation and norm subsidiarity provide the most rigorous theoretical account of ASEAN's success. Norm localisation describes how ASEAN members have selectively adapted international norms to fit prior local beliefs rather than accepting them wholesale. Norm subsidiarity describes ASEAN's creation of its own regional norms to protect regional autonomy from external imposition. Together these explain why ASEAN cooperation has been durable despite its resistance to legalistic enforcement. Kishore Mahbubani, in The ASEAN Miracle, emphasises that ASEAN's principles of consultation, non-interference, and consensus have produced regional peace among extraordinarily diverse states, and that it is a mistake to evaluate ASEAN by the standards of European supranationalism.

ASEAN's limitations are real. The consensus requirement and non-interference norm make it incapable of addressing serious political crises: the Myanmar junta's atrocities after the 2021 coup have been met with ASEAN's Five Point Consensus, which the junta has comprehensively ignored without consequence to its membership. Intra-ASEAN trade at approximately twenty-five percent of total trade is far below the EU's sixty percent, and the single market remains far from realised. Great-power competition between the United States and China creates centrifugal pressures as different members align differently, threatening the unity that the consensus principle requires.

SAARC: The Unfulfilled Promise of South Asian Integration

The South Asian Association for Regional Cooperation was established in 1985. It represents an almost textbook case of how bilateral political conflict can paralyse regional integration. South Asia is one of the least economically integrated regions in the world: intra-regional trade accounts for only around five percent of members' total trade - compared to sixty percent in the EU and twenty-five percent in ASEAN - a figure that has continued to decline with the deterioration of India-Pakistan relations. SAARC summits have not been held since 2014.

The core problem is structural. India constitutes approximately seventy percent of SAARC's territory, population, and GDP, creating the dynamic of an asymmetric region in which smaller neighbours simultaneously need Indian economic engagement and fear Indian dominance. Pakistan's persistent use of cross-border terrorism as a foreign policy instrument has made substantive India-Pakistan normalisation politically impossible. The South Asian Free Trade Agreement, signed in 2004, has been undermined by massive sensitive lists, non-tariff barriers, and weak implementation. India's response has been to pursue BIMSTEC - linking India, Bangladesh, Sri Lanka, Nepal, Bhutan, Myanmar, and Thailand through the Bay of Bengal - as an alternative architecture that bypasses Pakistan while extending India's strategic footprint into Southeast Asia.

BRICS: Inter-Regional Coalitional Politics

BRICS - originally Brazil, Russia, India, China, and South Africa, expanded to BRICS+ with the admission of Iran, Egypt, Ethiopia, and the UAE in 2024 - represents a different modality of cooperation: a coalition of emerging powers united not by geographic proximity but by shared structural interests in reforming the Western-led global governance architecture. BRICS was motivated by the perception that the IMF, World Bank, and WTO inadequately reflected the interests and growing economic weight of the Global South, and that the G7 excluded major economies from global economic management.

BRICS's concrete achievements include the New Development Bank, providing development finance as an alternative to World Bank conditionality, and the Contingent Reserve Arrangement, a multilateral currency swap mechanism. BRICS summits have coordinated positions on IMF voting share reform, UN Security Council reform, and greater use of non-dollar settlement. The BRICS+ expansion reflects broader ambitions to consolidate Global South collective weight. The coalition remains, however, structurally strained: India-China strategic rivalry creates fundamental tensions, and Russia's invasion of Ukraine has complicated BRICS's claim to represent a normatively coherent alternative to the Western order.

Regionalisation and Globalisation as Complementary Processes

The relationship between regionalisation and globalisation has been a central theoretical debate since the proliferation of regional trade agreements in the 1990s raised the question of whether regional blocs were building blocks or stumbling blocks for the multilateral trading system. The evidence broadly supports the building block thesis. Regional arrangements have reduced barriers to trade and investment, established norms of open markets, created institutional capacity for managing interdependence, and provided frameworks within which states have developed habits of cooperation that facilitate multilateral engagement. The EU, ASEAN, and USMCA have all been consistent advocates for an open multilateral trading system even as they deepen regional integration.

In an era of complex interdependence, governance has become multi-layered: global problems require global solutions, but regional collaboration makes those solutions more feasible and contextually tailored. Rather than a zero-sum competition between global and regional, the emerging paradigm treats regionalisation as a pillar of globalisation - a means by which countries pool sovereignty in manageable circles, build trust, and achieve collective gains that position them to contribute more effectively on the world stage. For India, this means pursuing regional initiatives such as the International Solar Alliance, BIMSTEC connectivity, and RCEP engagement in parallel with multilateral commitments in the WTO, Paris Agreement, and the SDG framework, treating regional and global integration as complementary rather than competing tracks of foreign policy.