Evolving Nature and Characteristics of Armed Conflicts in South Asia

For most of modern history, war meant uniformed armies of two nation-states clashing across a defined border. That image still dominates how we picture conflict, but it no longer matches reality. Since the end of the Second World War, the world has seen fewer large conventional wars between states and a sharp rise in violence that takes place within states: insurgencies, terrorism, ethnic rebellions, and proxy battles waged through non-state actors. South Asia is one of the clearest illustrations of this transformation. The region has experienced classic inter-state wars, yet its deadliest and most persistent violence has unfolded inside national borders. Understanding this shift is essential to understanding the security environment of the subcontinent today.

From inter-state wars to intra-state conflicts 🔗

An inter-state armed conflict is a war fought between two or more sovereign states using their regular armed forces. An intra-state conflict, by contrast, takes place within a single country, usually between the government and one or more organised armed groups. The defining trend of the post-1945 era is the steady decline of the first type and the dramatic growth of the second.

Data collected by the Stockholm International Peace Research Institute over decades has consistently shown that intra-state conflicts vastly outnumber inter-state ones. In one widely cited example, of 27 major armed conflicts recorded in a single year at the turn of the century, only a tiny fraction were wars between states. The overwhelming majority were internal. This pattern holds true globally and is especially pronounced in South Asia.

Why conventional wars have declined 🔗

Several forces have made large wars between states rarer and more costly to start.

Nuclear deterrence. The arrival of nuclear weapons fundamentally changed the calculations of major powers. The logic of mutually assured destruction meant that a full-scale war between nuclear-armed rivals risked total annihilation, raising the threshold for direct conflict to an almost unthinkable level. In South Asia, both India and Pakistan crossing the nuclear threshold in 1998 reshaped how the two neighbours approach confrontation.

Global norms and institutions. The creation of the United Nations and the wider body of international law established a strong norm against territorial conquest. Seizing land by force became internationally illegitimate in a way it had not been before, which removed one of the historic motives for inter-state war.

Economic interdependence. Liberal theorists argue that when economies are deeply connected through trade and investment, the cost of war becomes prohibitively high. The opportunity cost of disrupting commerce often outweighs whatever a state might gain militarily. A systematic review of the literature on this subject highlights how globalisation since 1945 has reshaped conflict dynamics, with many studies finding that strong trade linkages tend to reduce the likelihood of war, even as realists caution that interdependence can itself become a weapon.

Technological change. Advanced surveillance, precision weapons, and the sheer destructiveness of modern arsenals have made open conventional warfare enormously expensive and politically risky. Weaker actors increasingly avoid pitched battles and instead adopt irregular tactics where they can survive against a stronger opponent.

The rise of “new wars” 🔗

Scholars have developed several frameworks to describe this transformed landscape. The most influential is the “new wars” thesis advanced by Mary Kaldor. According to the new wars concept, post-Cold War conflict is marked by violence between shifting combinations of state and non-state networks, fighting in the name of identity rather than ideology, seeking control of populations through fear, and often financed through predatory means that prolong the violence itself.

Related ideas describe the same shift from different angles. Fourth-generation warfare typically pits a non-state opponent against a state, blending insurgency and guerrilla tactics adapted to conditions shaped by technology, globalisation, and religious or ethnic mobilisation. Hybrid warfare describes conflicts that mix conventional and irregular methods, combining military and civilian tools. What unites these frameworks is the recognition that the neat line between inter-state and intra-state war, and between soldier and civilian, has blurred.

Defining characteristics of contemporary conflict 🔗

Pulling these threads together, today’s armed conflicts in the region tend to share a set of features. Non-state actors such as insurgent groups, militias, and terrorist organisations have become central, rather than peripheral, players. Identity politics built on ethnicity, religion, language, or region frequently drives mobilisation. Civilians are no longer incidental casualties but often deliberate targets, used to spread fear and assert political control. And the conflicts are typically protracted, with no decisive battle and no clear end, sometimes persisting for decades.

South Asia as a case study 🔗

South Asia captures this entire spectrum within a single region. It has produced textbook inter-state wars, yet its enduring security crisis has been overwhelmingly internal.

The inter-state dimension: India and Pakistan 🔗

The most prominent inter-state rivalry in the region is between India and Pakistan, two nuclear-armed neighbours born of the 1947 partition. The two states fought multiple wars, including the conflict of 1971. Notably, even that war was triggered by an internal crisis: the suppression of Bengali nationalism in what was then East Pakistan, the resulting flow of millions of refugees into India, and the eventual creation of Bangladesh. The 1971 war shows how internal political contradictions within a state can spill across borders and become inter-state confrontations.

Yet since the nuclear tests of 1998, full-scale conventional war between the two has become far less likely. Instead, the rivalry has increasingly shifted toward proxy strategies and sub-conventional conflict, which leads directly to the second dimension.

Proxy wars and cross-border terrorism 🔗

One of the clearest signs of the changing nature of conflict is the substitution of direct war with proxy war. Rather than risk open confrontation, states may support non-state armed groups operating against a rival. In the case of Jammu and Kashmir, India has long faced what observers describe as cross-border infiltration of militants crossing the Line of Control to carry out attacks. Pakistan-based groups such as Lashkar-e-Taiba, founded in the late 1980s and active in Kashmir since the 1990s, exemplify how non-state actors have become instruments within a wider state rivalry. This is conflict conducted below the threshold of conventional war, but with serious and sustained consequences.

Insurgencies across the region 🔗

Beyond the India-Pakistan dynamic, the subcontinent has hosted some of the most significant insurgencies of the past half-century. The United States Institute of Peace has noted that South Asia’s real curse has been intra-state in nature, with the number of internal conflicts and their casualties far exceeding those of inter-state violence.

Sri Lanka. The civil war between the Sri Lankan state and the Liberation Tigers of Tamil Eelam grew out of ethnic tensions between Tamil and Sinhalese communities. The LTTE built a de facto state in the north of the island before being militarily defeated in 2009. According to a Carnegie Endowment analysis, the Tamil Tigers reached their peak of power in the early 2000s before the conflict ended in bloody fashion.

Nepal. The Maoist insurgency that began in 1996 mobilised marginalised ethnic groups and the rural poor against the state. What distinguishes Nepal’s trajectory is its resolution: the insurgents eventually entered the democratic political process they had once rebelled against, formalised through the 2006 Comprehensive Peace Agreement.

India. Within India, the state has simultaneously confronted insurgency in Kashmir, the Maoist or Naxalite movement across the eastern tribal belt, and a cluster of ethnic separatist movements in the northeast. These are driven by varying combinations of ideology, ethnicity, and economic marginalisation.

Why intra-state conflict thrives here 🔗

Several structural conditions make South Asia especially prone to internal conflict. A study of internal conflict and regional security points to weak state capacity across many countries in the region, combined with deep ethnic and religious diversity and a lack of regional integration. Identity-based grievances frequently harden into insurgency and then take on the character of terrorism, with non-state actors exploiting the resulting instability.

The human cost of these internal wars is distinct from conventional warfare. Research compiled by the United Nations Institute for Disarmament Research documents how intra-state conflict in the region has produced large-scale displacement, human rights violations, the recruitment of child soldiers, and cyclical communal violence. Because the fighting takes place among the population rather than on a separate battlefield, civilians bear the brunt of the violence.

What this shift means for security thinking 🔗

The move from inter-state to intra-state conflict has forced a rethinking of what “security” even means. The traditional focus on defending borders against external armies is no longer sufficient. Security thinking has widened to include the safety of communities and individuals, not just states, and to encompass political, economic, social, and human dimensions alongside the purely military one.

This also makes conflicts harder to resolve. A war between two states can, in principle, end with a treaty and a clear settlement. Internal conflicts driven by identity and grievance rarely offer such clean conclusions. They demand counterinsurgency, political accommodation, and long-term efforts to address the underlying causes, which is why so many have dragged on for decades. Nepal’s peace process stands out as a relatively successful transition, while the Sri Lankan war ended through military force, illustrating how differently these conflicts can conclude.

What do you think? If economic interdependence and nuclear deterrence have made full-scale wars between states less likely, why have internal conflicts in the region proven so much harder to end? And does the rise of non-state actors and proxy strategies make the line between “war” and “peace” almost impossible to draw in South Asia today?

References

1. https://www.britannica.com/topic/nuclear-strategy/After-the-Cold-War
2. https://www.cato-unbound.org/print-issue/406/
3. https://www.tandfonline.com/doi/full/10.1080/23311886.2025.2488114
4. https://en.wikipedia.org/wiki/New_wars
5. https://egyankosh.ac.in/bitstream/123456789/85138/1/Block-4.pdf
6. https://www.everycrsreport.com/reports/RL32259.html
7. https://www.usip.org/publications/2014/01/insurgency-and-counterinsurgency-south-asia
8. https://carnegieendowment.org/research/2020/09/political-violence-in-south-asia-the-triumph-of-the-state?lang=en
9. https://www.academia.edu/2508567/INTERNAL_CONFLICTS_AND_REGIONAL_SECURITY_IN_SOUTH_ASIA
10. https://unidir.org/files/publication/pdfs/internal-conflict-and-regional-security-in-south-asia-approaches-perspectives-and-policies-300.pdf