India’s eastern frontier with Myanmar and Bangladesh is fast transforming into South Asia’s most fragile security corridor. Coup-driven collapse in Myanmar, political uncertainty in Dhaka, reviving insurgencies, and deepening Chinese and Western strategic competition are converging to reshape this volatile arc. Its trajectory will define the Northeast’s stability, India’s regional influence, and the Bay of Bengal’s geopolitical balance.
AMBASSADOR SUSHIL KUMAR SINGHAL, IFS (RETD)
FOR NEWS ANALYTICS
6 mins read.
The eastern frontier linking India, Myanmar, and Bangladesh has quietly evolved into one of South Asia’s most volatile geopolitical theatres. The fragility stems from geographical porosity, ethnic cross-border continuities, insurgency ecosystems, and illicit economic networks. Myanmar’s post-2021 military coup has accelerated governance collapse along the border.
Simultaneously, the political transition in Bangladesh to an interim government has introduced ambiguity into India–Bangladesh security co-operation. This security arc is becoming a frontline that will determine the stability of India’s Northeast, the future of geopolitical alignment of Bangladesh, and the balance of influence between India, China and the United States. Ignoring this arc is no longer a luxury; it is a strategic risk.
This arc is no longer a peripheral border problem—it is becoming the decisive theatre shaping India’s eastern security future.
STRUCTURAL SECURITY CHALLENGES
The India–Myanmar border, 1,640 km long, remains difficult to police due to rugged terrain and overlapping ethnic communities whose mobility predates the nation-state system, making the border socially meaningless even if politically crucial. For decades, the Free Movement Regime (FMR), which allowed civilians to move up to 16 km across the border without visas—a humanitarian necessity but a security nightmare—has remained embedded in socio-cultural ethos, and informal crossings remain entrenched.
Add to this volatile mix the India–Bangladesh border, the world’s fifth-longest border, riddled with cattle smuggling routes, narcotics corridors, human trafficking chains, and insurgent supply channels. Periodic incidents involving the Border Security Force (BSF) and Bangladeshi civilians generate diplomatic tension and deepen mistrust. Rohingya mobility from coastal Bangladesh into the Northeast further complicates the matter.
With Dhaka under an interim administration, border management priorities may shift, particularly as the interim government seeks to balance domestic sentiments, maintain neutrality, and negotiate its legitimacy with various political constituencies. Together, these two borders create a dual-porosity ecosystem, representing not merely enforcement problems but embedded socio-political and economic vulnerabilities where a conflict or crisis in Myanmar does not just spill over, it cascades.
INSURGENT MOBILITY
Insurgency in Northeast India never died; it only adapted. Groups like NSCN(K), ULFA(I), PLA, KYKL and others have historically used the lawless borderlands of Myanmar as safe havens. Joint India–Myanmar operations in the 1990s and 2010s weakened them, but the current chaos allows them to regroup. Worse, some India-focused insurgent groups are reportedly to have collaborated with Myanmar’s military to gain operational freedom in rebel-contested zones, a dangerous arrangement that could ignite a new cycle of violence in the Northeast. As Ethnic Armed Organisations (EAOs) increasingly control segments of the borderland, their willingness or ability to curtail such groups remains inconsistent.
Mizoram and Manipur have received successive waves of Chin and Kuki refugees, while Bangladesh continues to host nearly one million Rohingya refugees in Cox’s Bazar. The protracted nature of displacement increases risks of radicalisation and criminal infiltration.
Where diplomacy hesitates and development stalls, insurgency, trafficking and external powers inevitably move in
EXTERNAL STRATEGIC PENETRATION
China’s economic corridor linking Yunnan to the Bay of Bengal via Myanmar weakens Indian influence and locks Myanmar deeper into the orbit of Beijing. China has deepened its ties with both the junta and selective EAOs to safeguard China–Myanmar Economic Corridor (CMEC) assets, including pipelines and port projects. This has entrenched Chinese influence over Myanmar’s political trajectory.
The arc is now said to host a complex assemblage of insurgents, arms dealers, narcotics traffickers, and radical elements moving across Myanmar, India, and Bangladesh. Golden Triangle methamphetamine production has surged, with Bangladesh’s coastal belt and the Northeast region being threatened to become transit corridors. Rohingya camps have witnessed the emergence of organised criminal syndicates with cross-border linkages. Radicalisation risks in Rohingya camps, exacerbated by reduced international aid, remain a significant security challenge for Bangladesh, India and Myanmar.
This interconnected illicit geography requires not bilateral, but trilateral coordination, something significantly complicated by the changing political posture under the interim administration in Bangladesh. A three-country insurgent ecosystem is emerging, and none of the states has the bandwidth to tackle it alone. These developments underscore the need for trilateral security mechanisms, yet political mistrust limits cooperative depth.
INDIA–BANGLADESH RELATIONS
The interim government has altered the political and diplomatic texture of India–Bangladesh relations and has adopted a new foreign-policy posture by reducing automatic alignment with India, in contrast to prior governments, signalling openness to diversified partnerships with China, the United States, and regional actors. While pragmatic co-operation with India continues, the absence of stable political leadership has introduced strategic hesitation in engagement with New Delhi. This recalibration is partly driven by the desire of interim leadership for domestic legitimacy and external balancing.
Security co-operation with India, historically strong in counter-insurgency, intelligence-sharing, and border management, is facing slower decision-making, more bureaucratic caution, greater sensitivity to public opinion and reluctance to take overtly India-centric positions on Rohingya repatriation, water-sharing, and border fencing. Given India’s heavy reliance on Dhaka for Northeast security, this uncertainty requires proactive engagement rather than assumption of continuity.
GEOPOLITICAL CORRIDORS
Great-power competition has added a geopolitical overlay to security dynamics. Chinese influence rests on CMEC projects, including the Kyaukpyu deep-sea port, to provide strategic reach into the Bay of Bengal and economic corridors offering Myanmar access to the Bay of Bengal. Beijing’s simultaneous engagement with the Myanmar junta and EAOs enhances its positional leverage. Bangladesh also remains a major recipient of Chinese loans and defence equipment. For India, China’s ability to operate simultaneously across Dhaka and Naypyidaw poses long-term strategic concerns.
For Washington, the India–Myanmar–Bangladesh arc is not a humanitarian problem; it is a strategic wedge to undercut Chinese dominance in the Bay of Bengal. Washington is proposing and quietly pushing corridor concepts linking Eastern India, Bangladesh ports (Chittagong, Mongla), the Northeast Region, eventually Myanmar and Southeast Asian markets.
If this corridor materialises, it would force Beijing to lose its monopoly over Myanmar and the Bay of Bengal. The Northeast would be linked via Bangladesh rather than Myanmar, and India would no longer be hostage to Myanmar’s instability. The USA wants Bangladesh to be integrated into Indo-Pacific supply networks and pulled away from Chinese strategic embrace.
For India, this connectivity would benefit economically but would make it lose exclusive influence over Dhaka; it would result in Bangladesh becoming indispensable and the USA gaining a foothold, forcing India to share strategic space. Bangladesh would become the pivot state of the eastern subcontinent, forcing India, China and the USA to court Dhaka.
The interim government’s receptiveness to Western engagement makes Bangladesh a pivotal node in emerging connectivity frameworks. The new political context in Bangladesh, therefore, magnifies the strategic importance of corridor diplomacy. This is the new geopolitical chessboard driving the arc’s future.
The Bay of Bengal’s future balance of power will be decided not at sea, but across this fragile land corridor.
INTEGRATED SECURITY
Given shifting political dynamics in Dhaka and persistent instability in Myanmar, stabilising the arc requires India to consider multidimensional strategies. India must deepen engagement with the interim government through institutional, not personality-driven, security co-operation. India should conduct structured dialogues on Rohingya management and radicalisation risks with Bangladesh. India should also look for joint border-community development initiatives and depoliticised defence and intelligence frameworks, and address politically sensitive issues such as water-sharing through transparent negotiation.
Myanmar strategy, under which India should pursue tactical co-operation with whichever authority controls relevant border zones, apply pressure to limit Chinese monopoly, seek co-operation in dismantling Northeast insurgent camps, engage EAOs to prevent facilitation of Indian insurgents, and support humanitarian corridors and local stabilisation efforts.
Any emerging corridor—whether USA-linked, regional, or multilateral—must integrate anti-trafficking mechanisms, secure logistic nodes, provide economic incentives for border communities and also have intelligence co-ordination platforms. India needs to devise a strategy to use American money and alternatives to Chinese roads, but shape the corridor design to fit India’s security needs.
Trying to stabilise this arc with boots and fences alone is suicidal. Realities demand a development-led security approach. The border communities are economically trapped. Under-development fuels insurgency recruitment. Lack of legal economic avenues invites smuggling networks. Ethnic mistrust deepens without an inclusive state presence.
External actors would exploit economic vacuums—where India fails to build roads or markets, China builds them. Where India hesitates, the USA invests. A stable arc requires human development, border infrastructure, coordinated security, and political diplomacy working simultaneously.
A trilateral security platform comprising India, Bangladesh and Myanmar (post-conflict), joint border development zones, regulated cross-border trade, counter-trafficking systems, and refugee repatriation frameworks is are strategic necessity.
ADAPTIVE SECURITY
The India–Myanmar–Bangladesh security arc stands at a moment of structural transition. Myanmar’s civil war continues to destabilise the frontier, transnational insurgency networks are reviving, and external powers are vying to shape the region’s connectivity landscape. The interim government in Bangladesh has introduced a new strategic variable, reshaping India’s eastern calculations.
While the foundations of India–Bangladesh co-operation remain intact, the foreign-policy recalibration underway in Dhaka demands renewed diplomacy and adaptive security engagement. For India, stability in the arc cannot be achieved through unilateral measures. A resilient architecture must synthesise security co-operation, political engagement, humanitarian governance, and development-led border integration, anchored in both bilateral and trilateral frameworks.
As great-power competition intensifies and domestic transitions reshape the political geography of the region, the security arc will be a decisive determinant of the Bay of Bengal’s strategic future and the stability of the Northeast region. This arc will be won not by force alone, but by strategy, development, and diplomatic dominance
(Ambassador Sushil Kumar Singhal, IFS (R), former Ambassador to Angola. He has served in Tanzania, Belgium, Bangladesh and Hungary. The views expressed are of the author and do not necessarily reflect the views of The News Analytics Herald.)
Quick Insights
- Porous India–Myanmar and India–Bangladesh borders sustain insurgency, trafficking and cross-border criminal networks.
- Myanmar’s civil war has revived militant sanctuaries threatening Northeast India’s fragile security environment.
- Bangladesh’s interim government introduces uncertainty into traditionally strong India–Bangladesh security cooperation.
- China, Iran, Turkey and the USA intensify strategic competition across emerging regional connectivity corridors.
- Long-term stability requires integrating security operations with development, diplomacy and border community welfare.
