In the shadow of a nuclear-armed rivalry, the flow of a single river has emerged as the latest diplomatic battlefield between India and Pakistan. Deputy Prime Minister and Foreign Minister Ishaq Dar has drawn a stark red line: any attempt by India to block, divert, or manipulate Pakistan’s rightful share of water under the Indus Waters Treaty (IWT) will be treated as nothing less than “an act of war.”
The statement echoes a declaration by Pakistan’s National Security Committee and underscores growing concern that New Delhi may be turning a 65-year-old pact—designed to prevent conflict—into a tool of coercion.
Beyond Kashmir’s recurring flashpoints and recent border tensions, the more profound existential risk may lie downstream: water as a weapon in a South Asian landscape already strained by climate pressures and population growth.
Deputy Prime Minister/Foreign Minister Senator Ishaq Dar briefed the Diplomatic Corps on the first anniversary of #MarkaEHaq, describing it as a symbol of Pakistan’s unity, resilience, and the unwavering resolve of its Armed Forces to defend the country’s sovereignty and… pic.twitter.com/i5CaPGebh2
— Ministry of Foreign Affairs – Pakistan (@ForeignOfficePk) May 5, 2026
Escalation Context: The May 2025 Conflict
That dispute over water has unfolded against the backdrop of a sharply heightened security environment between the two nuclear-armed neighbors. In May 2025, India and Pakistan engaged in an 87-hour military confrontation that pushed South Asia to the brink of wider escalation.
During the conflict, Pakistan—particularly Prime Minister Shehbaz Sharif and Army Chief Asim Munir—moved closer to U.S. President Donald Trump, with Islamabad openly acknowledging his mediation role and reports indicating discussions around a possible Nobel Peace Prize nomination. Indian Prime Minister Narendra Modi did not publicly endorse Trump’s framing of the ceasefire; some analysts suggest this divergence contributed to strains in US–India relations, while others argue that Pakistan’s elevated diplomatic profile as a key interlocutor for Washington and an emerging facilitator in the US–Iran channel may have amplified perceptions in New Delhi of strategic imbalance, feeding into a more assertive regional posture.
Trump later described the situation as a potential nuclear conflagration, underscoring the severity of the crisis.
The fighting was brought to a halt on May 10 following a rapid sequence of diplomatic interventions and backchannel communications involving multiple international actors, culminating in a ceasefire announcement. The episode highlighted both the volatility of India-Pakistan tensions and the increasingly central role of external mediation in preventing escalation between two nuclear-armed states.
The Treaty That Survived Wars
Signed in 1960 under the auspices of the World Bank, the Indus Waters Treaty has long been regarded as a rare success in Pakistan-India relations. It allocates the three western rivers (Indus, Jhelum, and Chenab) primarily to Pakistan, while granting India control over the eastern rivers (Ravi, Beas, and Sutlej), with limited usage rights on the western rivers for hydropower and irrigation.
For decades, the treaty endured three full-scale wars and numerous crises.
That fragile equilibrium was shaken in April 2025. Following a deadly attack in Pahalgam in Indian-administered Kashmir—where 26 civilians were killed—New Delhi placed the treaty in “abeyance,” alleging involvement by Pakistan-linked militants.
Pakistan rejected the accusation, calling for an independent international investigation.
Reviving Indus Waters Treaty Could Ease India–Pakistan Tensions: Chatham House Report
Islamabad described the move by Prime Minister Narendra Modi’s government as unlawful under international law and a violation of a binding treaty framework.
Subsequently, a Hague-based arbitration body ruled that the treaty could not be suspended unilaterally.
“India’s illegal and unilateral decision to hold in abeyance the Indus Waters Treaty… is a matter of grave concern for the international community,” Dar told envoys in Islamabad.
India’s Position: Justification and Sovereign Rights
New Delhi has maintained that its actions related to the Indus Waters Treaty are driven by national security considerations and remain within its sovereign rights over river infrastructure located on its territory.
Indian officials have argued that Pakistan’s objections stem from selective interpretations of the treaty, while asserting that India retains full legal authority to develop hydropower and irrigation projects within its allotted usage rights.
The Indian government has rejected allegations of deliberate manipulation of river flows, describing such claims as misleading and politically motivated. Officials maintain that operational adjustments in dams and reservoirs are technical in nature and not intended to disrupt downstream supply.
Court of Arbitration rules India cannot suspend Indus Waters Treaty
At the political level, senior Indian leadership has adopted a more assertive tone on the treaty, suggesting that existing arrangements are being reassessed in light of evolving security dynamics. However, New Delhi continues to frame its position as compliant with international law and treaty provisions, while dismissing Pakistan’s warnings as escalatory and unfounded.
India has also maintained that all hydrological developments on the western rivers fall within treaty parameters and insists that disputes must be addressed through technical and diplomatic mechanisms rather than political escalation.
Dar’s Warning: Water Cannot Be Weaponized
Dar warned diplomats that any Indian effort to disrupt Pakistan’s water share—whether through sudden stoppages, diversions, or unexplained fluctuations—would cross an inviolable threshold.
“Water blockade [will] be treated as an act of war,” he said, cautioning that such actions threaten not only agriculture but also the livelihoods of over 240 million Pakistanis.
After suspending water treaty with Pakistan, India pushes Bangladesh to renegotiate Ganga accord
This position reinforces the National Security Committee’s April 2025 declaration that any attempt to halt or divert Pakistan’s water “will be considered as an Act of War and responded with full force across the complete spectrum of national power.”
Dar also acknowledged the role of Donald Trump in facilitating a subsequent ceasefire, while stressing that water security remains non-negotiable.
“Water is life and cannot be weaponized,” he added.
Chenab’s Warning Signs
Recent developments have intensified concerns. According to Dawn, Pakistan has observed irregular fluctuations in the Chenab River—one of the country’s key agricultural lifelines.
Pakistan’s Indus Waters Commissioner has reported “unusual, abrupt variations” in river flows during multiple periods: April 30 to May 21, 2025; December 7 to 15, 2025; and May 2–3, 2026.
Officials attribute these fluctuations to unilateral water releases by India without prior notification, in violation of treaty provisions.
The timing is particularly critical. Disruptions during planting seasons can expose farmers to alternating risks of flooding and drought, especially in Punjab’s expansive agricultural belt.
“India’s manipulation of water, at a critical stage of our agricultural cycle, directly threatens livelihoods as well as food and economic security,” Dar said, warning that such actions could trigger a humanitarian crisis.
Pakistan has formally sought clarification and raised the issue with the United Nations, urging Secretary-General António Guterres to intervene.
Dams and Strategic Leverage
Dar’s concerns extend beyond short-term flow disruptions. He accused India of undermining the treaty through hydropower projects such as Kishanganga and Ratle, which Pakistan argues do not comply with agreed technical parameters.
These projects, along with expanded storage capacity, are viewed in Islamabad as creating a strategic imbalance that could allow India to regulate flows at critical moments.
India has also signaled plans to redirect water toward regions such as Rajasthan through new canal systems, further heightening concerns in Pakistan.
Statements by Indian officials, including Home Minister Amit Shah, suggesting the treaty may not be restored, have added to uncertainty.
A Global Appeal, With Room for Dialogue
Pakistan has internationalized the dispute as the top diplomat briefed foreign envoys and raised concerns at global forums, including the UN Security Council. Officials argue that suspension of treaty obligations poses a broader threat to regional stability and international legal norms.
Pakistan’s Transformative Turn After India Conflict: Defense, Diplomacy, and a Rare Opening
At the same time, Islamabad has signaled openness to dialogue. Dar has called for a “composite dialogue” addressing all outstanding issues, while reaffirming Pakistan’s commitment to peaceful resolution through international mechanisms.
The Human and Economic Stakes
The Indus basin supports more than 270 million people across both countries. For Pakistan, as the lower riparian state, disruptions could have severe consequences for food production in Punjab and Sindh provinces, economic stability, and social cohesion.
India, as the upper riparian, holds geographic leverage but faces its own risks, including environmental consequences and potential international scrutiny if water is perceived as a strategic tool.
In an era of climate change—marked by retreating glaciers and increasingly erratic monsoons—the treaty was intended as a stabilizing framework. Its erosion raises a critical question: can cooperation prevail, or will water become the next fault line in an already volatile region?
Kiran Asim is a writer who covers the U.S., Europe, South Asia, and the Middle East. Her reports and analyses look at the geostrategic issues and contemporary developments and their economic and political implications. She also writes about society and education.
