On 15 May 2026, a seven-member Court of Arbitration in The Hague ruled in Pakistan’s favor on storage limits for Indian hydropower projects on the western rivers, the same rivers that decide whether a farmer in Multan or Sukkur gets water when his fields need it most. India had already made clear it would not accept such a ruling. Within a day, New Delhi dismissed the award as “null and void,” consistent with a position it has held for over a year. Two months later, in July 2026, Pakistan’s Deputy Prime Minister Ishaq Dar convened an international seminar in Islamabad while the army’s Corps Commanders described water security as a matter of national survival. India did not move.
The 1960 Indus Waters Treaty, brokered by the World Bank after nine years of negotiation, survived two wars and decades of hostility between India and Pakistan. It allocated the western rivers, the Indus, Jhelum and Chenab, to Pakistan and the eastern rivers to India, with detailed technical annexes governing storage, flow timing and dispute resolution. Following the April 2025 Pahalgam attack that killed 26 civilians, India placed the entire treaty “in abeyance,” halting data-sharing, project notifications and Permanent Indus Commission meetings altogether.
India’s underlying grievance is politically understandable. New Delhi argues that a sixty-five-year-old agreement should not indefinitely shield a neighbor it accuses of sponsoring cross-border terrorism, and international law does recognize that a fundamental change of circumstances can justify revisiting a treaty’s operation. The problem is execution, not principle. India has followed neither the treaty’s own amendment procedure, which requires mutual ratification for any change, nor the Vienna Convention’s actual process for invoking changed circumstances. Instead, it has declared the treaty suspended while continuing to reject the dispute mechanisms it agreed to use. As the Court of Arbitration itself found in 2025, the treaty contains no provision for unilateral abeyance at all. That is not a lawful revision of an outdated agreement. It is a state choosing which of its obligations still apply.
The World Bank’s own conduct has deepened the vacuum rather than filled it. President Ajay Banga stated plainly that the institution has “no role to play beyond a facilitator” and will not adjudicate which of the treaty’s two dispute mechanisms takes precedence. When a treaty’s named guarantor abdicates that role, even a well-designed framework starts to fail.
Two other Asian basins show what that failure can look like at different stages. The Mekong River Commission, established in 1995 among Cambodia, Laos, Thailand and Vietnam, was built as a soft-law body from the outset, and its prior consultation process carries no veto power, only a procedural duty to notify. When Laos pushed ahead with the Xayaburi dam in 2012 over Cambodian and Vietnamese objections, consultation concluded without agreement and construction went ahead regardless. The Brahmaputra offers an even starker warning, because there is no comprehensive treaty at all between China, India and Bangladesh governing the river. Cooperation has been limited since 2002 to non-binding hydrological data-sharing memoranda renewed roughly every five years, which China suspended during the 2017 Doklam standoff, leaving Bangladesh, the most downstream and most exposed party, with no binding recourse whatsoever. The Indus Treaty was supposed to be the strongest of the three models. If that architecture can be hollowed out by simple non-compliance, basins with weaker or non-existent legal protection have far less standing between them and upstream coercion.
The practical stakes for Pakistan are severe. The Indus basin irrigates roughly nine in ten of the country’s crops and powers nearly all of its hydroelectric capacity, dependencies analysts have called load-bearing pillars of an economy already under IMF supervision. Pakistan has formally complained about abnormal flow variations on the Chenab three times since 2025. India does not need to halt the rivers entirely to inflict damage; altering release timing during planting or irrigation windows would be enough. That is precisely the coercive scenario the treaty’s technical provisions on storage and flow were written to prevent, which is why Pakistan’s civilian and military leadership have both shifted from the language of diplomacy to the language of survival this year.
Continuing to pursue arbitral victories that India will keep rejecting regardless of merit is not, on its own, a strategy. Pakistan’s more durable path is to internationalize the precedent itself, raising it at the UN General Assembly and Security Council, among other Asian basin states with a direct stake in the outcome, such as Bangladesh and Vietnam, and in forums that increasingly treat water as a climate-security issue. The argument to make there is narrow and precise: no state can suspend a treaty by declaration while continuing to invoke whichever of its provisions happen to be convenient, and if that maneuver succeeds unchallenged on the Indus, it will not stay confined to the Indus.
What is being tested in The Hague and in Islamabad’s seminar rooms is not only how much water reaches Pakistan’s fields this planting season. It is whether any downstream state in Asia, from the Mekong Delta to the Brahmaputra basin, can still treat an international water treaty as binding once its upstream neighbor decides otherwise. The multilateral vacuum opening on the Indus will not stay empty for long, and other upstream powers are already watching how it gets filled.
