Bangladesh Border Security: Militants, Armed Groups & Cross-Border Threats — 2024–2026

Bangladesh's border-security environment has become increasingly complicated, particularly along the Myanmar frontier, where fighting between armed groups has repeatedly spilled close to Bangladeshi territory. International reporting from 2024–2026 points to several distinct security developments.

🇲🇲 1. Myanmar Border — Armed Conflict Spillover

In February 2024, intense fighting between Myanmar's military and rebel forces pushed at least 95 Myanmar border guards into Bangladesh, some wounded. The incident demonstrated how quickly Myanmar's internal conflict could affect Bangladesh's frontier.

By December 2024, the Arakan Army (AA) had captured Maungdaw in Rakhine State, bringing a major armed organization into control of territory immediately adjacent to Bangladesh.

2. Arakan Army & Rakhine Conflict

The Arakan Army's expansion across Rakhine has remained one of the most important security developments affecting Bangladesh's southeastern border.

The conflict has involved the Myanmar military, the Arakan Army and Rohingya armed organizations. International Crisis Group warned in 2025 that a developing Rohingya insurgency against the Arakan Army could further destabilize the region.

3. Rohingya Armed Groups

Reuters reported in September 2024 that the Rohingya Solidarity Organisation (RSO) had reorganized and expanded, while rights groups accused it of forcibly recruiting Rohingya from refugee camps in Bangladesh—a charge the group denied.

This creates an additional security concern because Bangladesh's huge refugee population is located close to the conflict zone.

4. Landmine Incidents Near Bangladesh

The threat became particularly visible through landmine incidents. Al Jazeera/AFP reported in January 2026 that at least 28 people in Bangladesh were injured by landmines during 2025, while a Bangladeshi border guard was killed by a mine in November 2025.

The incidents demonstrate that the effects of Myanmar's armed conflict are reaching communities on the Bangladeshi side of the frontier.

 5. Continued Rohingya Displacement

Violence in Rakhine also continued to push people toward Bangladesh. A UK government assessment published in January 2026 said that up to 200,000 Rohingya had fled to Bangladesh during 2024–2025, while some Rohingya armed groups had formed alliances with Myanmar's junta.

As of August 2026, Reuters reported that Myanmar had verified approximately 309,000 Rohingya refugees in Bangladesh as originating from Rakhine, while saying that repatriation would depend on improved security conditions.

🇮🇳 6. India–Bangladesh Border — Transnational Networks

The India-facing frontier presents a different type of security challenge. Recent regional security assessments identify human trafficking, smuggling, illegal crossings and transnational criminal networks as continuing concerns along the border.

The security picture therefore extends beyond conventional militant activity to organized networks capable of exploiting porous border areas.

7. The Bangladesh–India–Myanmar Security Triangle

The Chittagong Hill Tracts–Cox's Bazar–Myanmar frontier is particularly sensitive because it sits close to the intersection of Bangladesh, India and Myanmar.

Regional security assessments have highlighted the interaction between insurgent activity, refugee movements, trafficking and smuggling networks around the wider eastern frontier.

⚠️ Overall Assessment

From 2024 through 2026, the clearest internationally documented armed-group threat affecting Bangladesh's borders has been concentrated around the Bangladesh–Myanmar frontier, rather than evidence of militants controlling Bangladeshi territory.

The major developments include:

• 2024: Myanmar fighting spills across the border; border guards enter Bangladesh.
• 2024: Arakan Army consolidates control in areas adjacent to Bangladesh.
• 2024–25: Rohingya armed groups become increasingly involved in the Rakhine conflict.
• 2025: Landmine incidents affect Bangladeshi civilians and border personnel.
• 2025: Continued Rohingya displacement increases pressure on Bangladesh.
• 2026: International reporting continues to identify insecurity in Rakhine as a major obstacle to refugee repatriation.

Bottom line: Bangladesh's border challenge is increasingly shaped by armed conflict next door, militant/insurgent mobilisation, landmines, refugee flows and transnational criminal networks. The Myanmar frontier remains the most direct point of armed-conflict spillover.

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