The most consequential geopolitical framework shaping Indian strategic thinking is a theory that originated not in Beijing, not in New Delhi, but in a report commissioned by the United States Department of Defense in 2004. The "String of Pearls" — China's alleged strategy of encircling India through a necklace of ports, bases, and relationships across the Indian Ocean — has driven two decades of Indian defence spending, diplomatic manoeuvring, and strategic anxiety. The question our charter requires us to ask is simple and uncomfortable: how much of it is real?
The answer, rigorously examined, is: some of it, partially, in ways that are more complex and more contested than either the alarmed Indian narrative or the dismissive Chinese denial acknowledges. China is unquestionably building strategic infrastructure across the Indian Ocean Region. That infrastructure serves China's economic and energy security interests first, and its military ambitions second — and the gap between those two motivations matters enormously when assessing the actual threat to India.
This issue examines China's South Asia architecture pearl by pearl, corridor by corridor, and claim by claim. We test the encirclement thesis against what the evidence actually shows, examine what China is genuinely trying to achieve, and assess India's counter-moves — the "Necklace of Diamonds" strategy that has received far less international attention than the threat it is designed to counter.
Where the Theory Came From — and Why That Matters
The String of Pearls framework was first articulated in 2004 by US defence contractor Booz Allen Hamilton in a report for the Pentagon titled "Energy Futures in Asia." The phrase was coined by American analysts, not Chinese strategists. China has never formally adopted the term, never published a doctrine by that name, and consistently denies that its infrastructure investments have any military purpose. This origin is not merely academic — it tells us something important about what the theory is and is not.
It is a hypothesis about Chinese intent, derived from pattern-recognition of Chinese behaviour, by analysts with their own strategic interests in framing China as a threat. That does not make it wrong. Pattern-recognition is a legitimate form of strategic intelligence. But it means the theory carries the epistemological status of an inference, not a demonstrated fact — and we should treat it accordingly.
The Academic Consensus — More Contested Than The Headlines Suggest
A 2025 peer-reviewed paper in the Australian Journal of Maritime & Ocean Affairs — one of the most rigorous recent academic assessments — concluded that "the security threat to India emanating from China's ports remains largely theoretical." The paper's authors, examining the evidence base for the encirclement hypothesis across more than a decade of Chinese activity, found that India's behaviour has been "mainly reactionary" because of the influence of an ambitious theory that its own evidence base only partially supports.
This is not a fringe view. CSIS, the Lowy Institute, and multiple independent scholars have reached similar conclusions on the specific question of whether Chinese commercial port investments constitute a militarily operational encirclement. The consensus is nuanced: the ports are real, Chinese naval presence in the Indian Ocean is growing, and the potential for dual-use is genuine. But the leap from "potential" to "operational military threat" requires evidence that, in most cases, does not yet exist in the open-source record.
With that methodological caution established, let us examine each major pearl individually — because the evidence picture varies significantly from site to site.
Pearl by Pearl — What the Evidence Actually Shows
The picture that emerges from this pearl-by-pearl assessment is more granular than the encirclement thesis typically allows. China has one confirmed military base in the IOR — Djibouti, which is primarily oriented toward the Horn of Africa, not India. Its commercial ports have potential dual-use value, and the PLA Navy has used Hambantota for ship visits. But the leap from "Chinese-operated commercial port" to "operational naval base capable of threatening India" involves assumptions about Chinese intent and capability that the current evidence does not fully support in most locations.
That said — the trajectory matters more than the snapshot. Since 2008, Beijing has sent more than 45 naval missions to the Indian Ocean Region, and at any given time there are up to 10 Chinese warships operating in these waters. The infrastructure being built today provides the foundation for a more robust military presence tomorrow. India is not wrong to be concerned. It may be wrong about the current severity.
What China Actually Wants — The Malacca Dilemma Explained
To understand China's infrastructure architecture honestly, you must understand the strategic anxiety that drives it. It is not primarily about India. It is about oil.
Approximately 80% of China's energy imports pass through the Strait of Malacca — a 900-kilometre-long chokepoint between Malaysia and Indonesia, barely 2.7 kilometres wide at its narrowest point. In any serious conflict with the United States, the US Navy could blockade the Strait of Malacca and strangle China's energy supply within months. Chinese strategists call this the "Malacca Dilemma." Every major piece of Chinese infrastructure in the Indian Ocean can be read primarily as a response to this existential vulnerability, not as a move against India.
Both readings are simultaneously true — and this is the most important analytical insight in this entire piece. China is genuinely building for its own energy security. And those same investments genuinely do constrain India's maritime environment. The question of intent is less strategically relevant than the question of effect. India must manage the strategic consequences of Chinese infrastructure regardless of whether Beijing designed those consequences deliberately.
Friedman's framework is particularly clarifying here. China's Malacca Dilemma is not a policy choice — it is a geographic fact. Any Chinese state, of any ideological character, would seek to reduce its dependence on a maritime chokepoint controlled by a potential adversary. The Belt and Road Initiative is, in this reading, less a grand hegemonic project than a rational response to structural geographic vulnerability. India's concern is equally rational and equally geographic. Two states, each responding logically to their geography, produce an adversarial dynamic that neither necessarily designed.
CPEC — The Flagship That Sailed Into Trouble
The China-Pakistan Economic Corridor is the centrepiece of China's South Asia strategy and the most strategically significant single element of the IOR architecture for India. CPEC runs through Gilgit-Baltistan — disputed territory that India claims as part of Jammu and Kashmir — which means that Chinese construction activity there constitutes, from New Delhi's perspective, a direct endorsement of Pakistan's territorial claims. This is not a theoretical concern. It is a live sovereignty dispute with Chinese infrastructure physically embedded in it.
The strategic rationale for CPEC is clear and verified: it provides China with an overland route to the Arabian Sea at Gwadar, reducing its dependence on Malacca by approximately 12,000 kilometres for Middle Eastern energy imports. CPEC serves as a shorter, land-based alternative to import oil from the Middle East via Gwadar Port, reducing China's dependency on the Strait of Malacca — a vulnerable chokepoint that sees 80% of its energy imports and could be blockaded in a potential conflict.
What the evidence also shows — and what both official narratives obscure — is that CPEC has substantially underperformed its ambitions. The gap between what was promised and what exists on the ground is one of the most important under-reported stories in Asian geopolitics.
The most analytically significant finding from independent CPEC scholarship is the mutual dependency trap: China cannot abandon CPEC without losing face as BRI's flagship collapses, while Pakistan cannot afford to alienate its primary infrastructure partner and debt holder. Both governments are therefore incentivised to maintain public narratives of success regardless of ground reality. This makes CPEC official statements — from both sides — among the least reliable T3 sources in our entire coverage area.
Hambantota — The Debt Trap That Wasn't (Quite)
Hambantota has become the global shorthand for Chinese "debt-trap diplomacy" — the theory that China deliberately lends money for economically unviable projects, waits for the borrower to default, then converts debt to strategic assets. The case for Hambantota as debt-trap is intuitively compelling. The evidence, when examined carefully, is more complicated.
Hambantota — What The Record Actually Shows
Origin: The Hambantota port was not a Chinese idea. Sri Lanka sought funding for it from the United States, India, Canada, and Denmark before approaching China. India and the US both declined to fund the project. China agreed. The port was built in response to a Sri Lankan request — not as an unsolicited Chinese strategic investment.
The debt crisis: Sri Lanka's debt crisis that triggered the 2017 transfer was not primarily caused by CPEC-equivalent Chinese loans. Academic analysis published in 2023 by former UK diplomat Kerry Brown found that Chinese loans to Hambantota specifically were not the primary driver of Sri Lanka's insolvency. International sovereign bonds — primarily held by Western creditors — were the larger share of the debt that triggered the crisis. Sri Lanka proposed the 99-year lease to raise foreign exchange to repay those Western creditors, not Chinese ones.
Post-transfer military use: As of 2026, there has been no permanent PLA military installation at Hambantota. The Lowy Institute found "no evidence of any PLA military activity there prior to 2022." PLA Navy vessel Yuan Wang 5 docked in 2022 and 2024 — described as a research/tracking vessel. Sri Lanka has explicitly prohibited military use. Sri Lanka's highest-ranking military officer stated in 2018 that the claims about military basing were unfounded.
Commercial trajectory: After years of underperformance, by May 2024 Hambantota had grown into a significant vehicle transshipment hub, with monthly turnover of 700,000 units. Academic writing in 2023 observed that China's relationship with Hambantota had become "the opposite of the theorized debt-trap modus operandi" — China had committed more money, exposed itself to more risk, and become entangled in local politics.
None of this means India's concerns about Hambantota are irrational. A Chinese-operated deep-water port located on Sri Lanka's southern coast — directly astride the sea lane connecting India's western ports to the Middle East — has genuine strategic implications regardless of whether it was designed as a military base. Unlike Colombo, where Sri Lanka's navy is headquartered, Hambantota is more isolated and could offer Chinese vessels greater independence. The concern is legitimate. The specific "debt-trap" narrative, however, is partly a simplification built on a more complex reality that serves multiple parties' political narratives.
"China built a port that Sri Lanka asked for, with money Sri Lanka borrowed, on a lease that Sri Lanka proposed. The debt-trap narrative is more useful as political messaging than as geopolitical analysis."
Swords & Floods Analysis — Drawing on CSIS (T2), Lowy Institute (T2), Wikipedia Hambantota sourcing (T1)The Necklace of Diamonds — India's Counter-Architecture
India has not been passive in response to China's IOR expansion. Its counter-strategy — the "Necklace of Diamonds" — receives a fraction of the geopolitical commentary directed at the String of Pearls, which is itself analytically revealing: threat narratives travel faster than response narratives.
The Necklace of Diamonds, a term first coined by former Indian Foreign Secretary Lalit Mansingh in 2011, involves India securing access to strategically located ports and naval facilities across the Indian Ocean — not ownership or military bases, but access agreements, logistics sharing arrangements, and deepened security partnerships that give the Indian Navy operational reach across the region.
India's Diamond Network — Confirmed Agreements
Changi Naval Base, Singapore (2018): India-Singapore CECA agreement provides Indian Navy access to Changi for refuelling and rearming during South China Sea transits. Strategically located at the eastern end of the Malacca Strait.
Sabang Port, Indonesia (2018): India secured military access to Sabang, located at the entrance of the Malacca Strait on Weh Island. Provides India with a presence at the world's most strategically significant maritime chokepoint.
Duqm Port, Oman (2018): India secured military access to Duqm on Oman's southern coast — the Indian Navy's western anchor in the Arabian Sea, providing operational reach toward the Strait of Hormuz.
Chabahar Port, Iran (2016–ongoing): India committed $500 million to develop this Iranian deep-water port on the Gulf of Oman, providing access to Afghanistan and Central Asian trade routes while positioning India adjacent to Gwadar — China's Pakistani pearl — just 72 kilometres away by sea. India-Iran Chabahar agreement extended to 10-year operational deal in 2024.
Andaman and Nicobar Islands: India's tri-service command at Port Blair, at the northern entrance to the Malacca Strait, gives India potential interdiction capability over China's primary maritime energy route. India is expanding its military infrastructure on the islands. This is India's most strategically significant diamond — on China's most strategically sensitive chokepoint.
India's counter-architecture has a significant structural advantage over China's String of Pearls: India is the Indian Ocean's resident power. It does not need to build from scratch — it needs to leverage geography it already occupies. The Andaman and Nicobar Islands sit astride the Malacca Strait. India's western coastline faces the Arabian Sea. Its eastern coastline commands the Bay of Bengal. China is projecting power into a maritime space where India is already home.
The Necklace of Diamonds also has genuine weaknesses that honest analysis requires acknowledging. Iran has decided to proceed with the Chabahar-Zahedan railway line project on its own due to delays in funding from India — a pattern of promising strategic initiatives not followed through with the funding and consistency they require. India's bureaucratic and political systems struggle to sustain the long-horizon commitment that infrastructure diplomacy demands. China builds. India often announces.
The Diplomat's strategic analysis argues that India's Indo-Pacific approach is "primarily a means to counterbalance Beijing in its immediate maritime neighbourhood" — but warns that "without a stronghold in the Indian Ocean, India's Indo-Pacific aspirations remain hollow." The piece identifies a critical vulnerability: while the Quad's other members (US, Japan, Australia) are primarily Pacific-focused, India's most pressing security challenges are in the Indian Ocean. India may be investing its diplomatic capital in Pacific-oriented multilateral formats while its immediate maritime neighbourhood requires more direct attention.
So Is It Encirclement? The Honest Answer
The String of Pearls framework, tested against the evidence, is partially true, substantially overstated, and strategically useful to multiple parties who benefit from its overstatement.
What is genuinely true: China is systematically building infrastructure across the Indian Ocean Region. That infrastructure gives China improving capacity to sustain naval operations far from its shores. The PLA Navy is a growing presence in the IOR — 45+ missions since 2008, up to 10 vessels at any time. China has one confirmed military base (Djibouti). CPEC runs through disputed Indian territory and physically embeds Chinese infrastructure in a sovereignty dispute. The Maldives is drifting toward Beijing. The trajectory is concerning even where the current snapshot is less alarming.
What is overstated: The characterisation of Chinese commercial ports as operational military bases is not supported by current evidence at most locations. The "debt-trap" narrative around Hambantota misrepresents the origins and mechanics of that specific deal. CPEC's actual strategic capability is significantly constrained by its underperformance, Pakistan's instability, and Baloch insurgency attacks on Chinese personnel. The threat is real and growing — but it is not yet as operationally potent as the encirclement thesis implies.
What is most important: China's primary strategic motivation is the Malacca Dilemma — energy security, not Indian encirclement. This matters because it means China and India are not necessarily in zero-sum conflict over the IOR. There is space for diplomatic management that pure encirclement thinking forecloses. India's most powerful strategic asset is not its counter-infrastructure — it is its status as the Indian Ocean's resident power, with geography that China cannot replicate regardless of how many ports it builds.
The finding that most challenges received wisdom: Independent academic scholarship assessed the security threat from China's ports as "largely theoretical" as of 2025. That finding should give both Indian alarmists and Chinese deniers pause. The threat is real enough to require serious strategic response. It is not yet real enough to justify the strategic panic that drives some of India's most expensive and diplomatically costly decisions.
Issue 005 will examine the other side of this architecture — a Pakistan whose economy is in structural crisis, whose debt to China is a strategic constraint rather than a strategic resource, and whose nuclear programme is consuming the fiscal space the state needs to function. The architect's most important partner is also its most precarious one.