Skip to main content

Indo-Sri Lanka defence agreement and prospects for peace in Indian Ocean

By Shiran Illanperuma 
In 1964, during the second summit of the Non-Aligned Movement in Cairo, Prime Minister of Sri Lanka (then Ceylon) Sirimavo Bandaranaike proposed that the Indian Ocean be turned into a ‘zone of peace’ that was free of military bases and nuclear weapons. In the context of heightened militarisation during the Cold War, this proposal was supported by Indian Prime Minister Jawaharlal Nehru.
Sixty-one years later, the two countries have entered into a memorandum of understanding on defence cooperation. This is against the backdrop of a new wave of militarisation in the Indian Ocean, including India’s own participation in the Quad (a group consisting of the US, Australia, and Japan), which is a component of the US Indo-Pacific Strategy to contain China in a New Cold War.
On 5 April, a defence MOU was exchanged between Sri Lankan Defence Secretary H.S. Sampath Thuyacontha and Indian Foreign Secretary Vikram Misri during an official visit by Indian Prime Minister Narendra Modi to Sri Lanka. Thuyacontha said that the agreement, which was not discussed in the Sri Lankan Parliament, will be valid for five years.
During a joint press statement with Sri Lankan President Anura Kumara Dissanayake, Modi said that he welcomed the ‘important agreements made in the area of defence cooperation’, without elaborating further on their contents. Meanwhile, Misri asserted that ‘the security interests of India and Sri Lanka are interlinked’.
News of the intent to sign a defence agreement first broke in Indian media on 28 March, with the Press Trust of India framing it as ‘a move that comes amid China's relentless attempts to increase its military influence over Colombo’. While official statements from both parties do not echo this anti-China framing, it nonetheless raises concerns over the prospect of the two nations being drawn further into a New Cold War.
India and the Quad
India is a founding member of the Quad, a group first established in 2007, suspended in 2008 following the withdrawal of Australia, and re-established in 2017. The group exhibits strong security dimensions, as the countries have engaged in joint military exercises, such as the Malabar Naval Exercise, which India hosted in 2024.
India is set to host the Quad summit this year, the first to be held since Donald Trump was elected president for a second term. In July 2024, Republican senator Marco Rubio – currently Trump’s secretary of state – tabled a bill in Congress to grant India status on par with NATO members when it comes to arms exports. While the bill has not made much headway in Congress, its basic agenda appears to be moving forward in other forms.
In February 2025, following a meeting between Modi and Trump in Washington, the two leaders announced an initiative called the ‘U.S.-India COMPACT (Catalysing Opportunities for Military Partnership, Accelerated Commerce and Technology) for the 21st Century’. This includes a 10-year defence framework to facilitate the transfer of technology, expand the co-production of arms, strengthen military interoperability, and ‘support and sustain the overseas deployments of the US and Indian militaries in the Indo-Pacific’.
India’s drift into the US military-industrial complex and the New Cold War on China risks exacerbating tensions in Asia. However, India has at times also displayed what it terms ‘strategic autonomy’ by taking an independent stance on issues such as the Russia-Ukraine conflict. In 2024, Indian External Affairs Minister S. Jaishankar rejected calls by Japan for establishing an ‘Asian NATO’, arguing that India has ‘a different history and a different way of approaching’ foreign affairs.
Sri Lanka and the Indo-Pacific Strategy
Since the end of its civil war in 2009, Sri Lanka has increasingly been drawn into the US Indo-Pacific Strategy. According to the US State Department’s 2022 Integrated Country Strategy for the country, the top mission objective is to ‘increase Sri Lanka’s interoperability with the United States and like-minded strategic partners’.
This has manifested in greater military cooperation between the two countries, as well as arms sales from the US to Sri Lanka. According to data from Stockholm-based research institute SIPRI, some 36% of arms transfers to Sri Lanka between 2009 and 2024 were from the United States. These transfers included mainly helicopters and patrol ships. 
In 2024, Sri Lanka played a role in the US-led Operation Prosperity Vanguard against the Ansar Allah government in Yemen. The latter has been attacking Israeli-affiliated ships in the Red Sea in retaliation for the genocide in Gaza. The Sri Lankan navy ship SLNS Gajabahu, which was deployed for the operation, was originally a US Coast Guard vessel commissioned in 1966 and donated to Sri Lanka in 2018.
More recently, a visit by US Indo-Pacific Commander Admiral Samuel J. Paparo in March indicates the continued importance of Sri Lanka to the US strategy in the region. During his visit to the country, Paparo met with President Dissanayake and Foreign Minister Vijitha Herath. In a speech delivered at the National Defence College in Colombo, Paparo said that ‘increased military cooperation among authoritarian nations’ was creating challenges that necessitated ‘strengthening democratic partnerships’.
Less than 2,000 kilometres south of Sri Lanka, the US has parked at least six B-2 stealth bombers at its base in Diego Garcia, in the occupied Chagos Islands. These bombers are used to attack targets in Yemen and also present an existential threat for Iran. For the US, control over the Indian Ocean is key for power projection onto both East and West Asia.
Zone of Peace
The Indian Ocean peace proposal was pushed onto the agenda of the twenty-sixth session of the UN General Assembly in 1971 by Sri Lanka, with the support of the United Republic of Tanzania (then led by Julius Nyerere). This led to the adoption of UN resolution 2832 – the ‘Declaration of the Indian Ocean as a Zone of Peace’. The declaration sought to ensure: 
- Warships and military aircraft would not use the Indian Ocean for any threat or use of force against any littoral or hinterland state.
- The right to free and unimpeded use of the zone by the vessels of all nations would be ensured.
- International agreement would be reached for the maintenance of the Indian Ocean as a zone of peace.
As the second Trump administration continues to intensify a New Cold War, peace in the Indian Ocean is once again at stake. India’s engagement with the Quad and Sri Lanka’s entrapment in the Indo-Pacific Strategy threaten to fan the flames of war in the region. However, history has shown that with social mobilisation and principled leadership on either side, Sri Lanka and India could instead fight for peaceful development and cooperation in the Global South.
---
This article was produced by Globetrotter. Shiran Illanperuma is a Sri Lankan journalist and political economist. He is a researcher at Tricontinental: Institute for Social Research and a co-editor of Wenhua Zongheng: A Journal of Contemporary Chinese Thought

Comments

TRENDING

Delhi Jal Board under fire as CAG finds 55% groundwater unfit for consumption

By A Representative   A Comptroller and Auditor General (CAG) of India audit report tabled in the Delhi Legislative Assembly on 7 January 2026 has revealed alarming lapses in the quality and safety of drinking water supplied by the Delhi Jal Board (DJB), raising serious public health concerns for residents of the capital. 

Advocacy group decries 'hyper-centralization' as States’ share of health funds plummets

By A Representative   In a major pre-budget mobilization, the Jan Swasthya Abhiyan (JSA), India’s leading public health advocacy network, has issued a sharp critique of the Union government’s health spending and demanded a doubling of the health budget for the upcoming 2026-27 fiscal year. 

Iswar Chandra Vidyasagar’s views on religion as Tagore’s saw them

By Harasankar Adhikari   Religion has become a visible subject in India’s public discourse, particularly where it intersects with political debate. Recent events, including a mass Gita chanting programme in Kolkata and other incidents involving public expressions of faith, have drawn attention to how religion features in everyday life. These developments have raised questions about the relationship between modern technological progress and traditional religious practice.

Stands 'exposed': Cavalier attitude towards rushed construction of Char Dham project

By Bharat Dogra*  The nation heaved a big sigh of relief when the 41 workers trapped in the under-construction Silkyara-Barkot tunnel (Uttarkashi district of Uttarakhand) were finally rescued on November 28 after a 17-day rescue effort. All those involved in the rescue effort deserve a big thanks of the entire country. The government deserves appreciation for providing all-round support.

Pairing not with law but with perpetrators: Pavlovian response to lynchings in India

By Vikash Narain Rai* Lynch-law owes its name to James Lynch, the legendary Warden of Galway, Ireland, who tried, condemned and executed his own son in 1493 for defrauding and killing strangers. But, today, what kind of a person will justify the lynching for any reason whatsoever? Will perhaps resemble the proverbial ‘wrong man to meet at wrong road at night!’

Jayanthi Natarajan "never stood by tribals' rights" in MNC Vedanta's move to mine Niyamigiri Hills in Odisha

By A Representative The Odisha Chapter of the Campaign for Survival and Dignity (CSD), which played a vital role in the struggle for the enactment of historic Forest Rights Act, 2006 has blamed former Union environment minister Jaynaynthi Natarjan for failing to play any vital role to defend the tribals' rights in the forest areas during her tenure under the former UPA government. Countering her recent statement that she rejected environmental clearance to Vendanta, the top UK-based NMC, despite tremendous pressure from her colleagues in Cabinet and huge criticism from industry, and the claim that her decision was “upheld by the Supreme Court”, the CSD said this is simply not true, and actually she "disrespected" FRA.

Zhou Enlai: The enigmatic premier who stabilized chaos—at what cost?

By Harsh Thakor*  Zhou Enlai (1898–1976) served as the first Premier of the People's Republic of China (PRC) from 1949 until his death and as Foreign Minister from 1949 to 1958. He played a central role in the Chinese Communist Party (CCP) for over five decades, contributing to its organization, military efforts, diplomacy, and governance. His tenure spanned key events including the Long March, World War II alliances, the founding of the PRC, the Korean War, and the Cultural Revolution. 

Uttarakhand tunnel disaster: 'Question mark' on rescue plan, appraisal, construction

By Bhim Singh Rawat*  As many as 40 workers were trapped inside Barkot-Silkyara tunnel in Uttarkashi after a portion of the 4.5 km long, supposedly completed portion of the tunnel, collapsed early morning on Sunday, Nov 12, 2023. The incident has once again raised several questions over negligence in planning, appraisal and construction, absence of emergency rescue plan, violations of labour laws and environmental norms resulting in this avoidable accident.

'Threat to farmers’ rights': New seeds Bill sparks fears of rising corporate control

By Bharat Dogra  As debate intensifies over a new seeds bill, groups working on farmers’ seed rights, seed sovereignty and rural self-reliance have raised serious concerns about the proposed legislation. To understand these anxieties, it is important to recognise a global trend: growing control of the seed sector by a handful of multinational companies. This trend risks extending corporate dominance across food and farming systems, jeopardising the livelihoods and rights of small farmers and raising serious ecological and health concerns. The pending bill must be assessed within this broader context.