One year after India-Pakistan conflict, ceasefire holds - but little else does

What Happened

• One year after the India-Pakistan military conflict (Operation Sindoor, May 7–10, 2025), the ceasefire agreed on May 10, 2025, continues to hold along the Line of Control and international border.
• Despite the military standdown, diplomatic relations remain effectively frozen: no bilateral talks have been held, trade and people-to-people links remain suspended, and no written commitments from Pakistan on curbing cross-border terrorism have materialised.
• The conflict's resolution involved external actors — notably the United States — which mediated the ceasefire, a departure from the Simla Agreement's bilateral-only framework.
• Pakistan's army chief received significant international diplomatic attention in the post-conflict period, complicating India's objective of diplomatically isolating Pakistan the way it was after the 2008 Mumbai attacks.
• Analysts note an expanding "space for military action" — both sides appear to be internalising the possibility of sub-nuclear conventional conflict, raising concerns about stability in the medium term.

Static Topic Bridges

The Simla Agreement (1972) and the Bilateral Framework

The Simla Agreement, signed on July 2, 1972, in Shimla, Himachal Pradesh, between Prime Minister Indira Gandhi and President Zulfikar Ali Bhutto, established the foundational bilateral framework for India-Pakistan relations. Signed after the 1971 war that led to the creation of Bangladesh and the surrender of 93,000 Pakistani troops, the agreement converted the December 17, 1971, ceasefire line into the Line of Control (LoC) in Jammu and Kashmir. Critically, it committed both sides to resolving all differences "by peaceful means through bilateral negotiations," explicitly excluding third-party mediation. This bilateralism has been India's consistent diplomatic position. The US-mediated ceasefire of May 10, 2025, represents a significant departure from this framework, raising questions about the durability of the bilateral-only architecture.

Indus Waters Treaty and the Weaponisation of Water Diplomacy

The Indus Waters Treaty (IWT), signed on September 19, 1960, between India and Pakistan with the World Bank as guarantor, is one of the world's most durable water-sharing agreements. It has survived four India-Pakistan wars (1965, 1971, 1999 Kargil, and the 2025 conflict). The treaty allocates the three eastern rivers (Beas, Ravi, Sutlej) to India and the three western rivers (Indus, Chenab, Jhelum) to Pakistan. Pakistan receives roughly 80% of the total flow. The Permanent Indus Commission (Article VIII) meets at least once yearly. India placing the treaty in abeyance in April 2025 — conditioning resumption on Pakistan ending cross-border terrorism — is historically unprecedented, marking the first time India has used water as a coercive instrument in this bilateral relationship. The Permanent Court of Arbitration has held that the treaty cannot be unilaterally suspended, adding a legal dimension to the dispute.

Nuclear Deterrence and the Stability-Instability Paradox

The stability-instability paradox, theorised by Glenn Snyder (1965), holds that nuclear deterrence at the strategic level creates stability (neither side will use nuclear weapons) but simultaneously enables instability at lower levels — because each side believes the other's nuclear deterrent prevents full-scale conventional retaliation. In South Asia, this has manifested in Pakistan's use of sub-conventional proxy conflict (terrorist groups) under a nuclear umbrella. Operation Sindoor challenged this paradox by demonstrating that India was willing to conduct limited conventional military operations inside Pakistan even under nuclear threat. Pakistan's development of tactical nuclear weapons (TNWs) like the Nasr missile is specifically designed to lower the nuclear threshold and close this conventional space. The post-ceasefire period's failure to produce binding commitments means the structural conditions for the paradox persist.

Key Facts & Data

• Ceasefire date: May 10, 2025, effective 5:00 PM IST; US involvement in mediation confirmed.
• Operation Sindoor: May 7–10, 2025; nine terror sites struck; approximately 88-hour tri-service operation.
• Pahalgam attack: April 22, 2025; 26 civilians killed; attributed to The Resistance Front (TRF), a proxy of Lashkar-e-Taiba.
• 2008 Mumbai attacks: Lashkar-e-Taiba; 166 killed; Pakistan was significantly diplomatically isolated in aftermath.
• Simla Agreement: July 2, 1972; established the LoC; mandates bilateral-only dispute resolution.
• Indus Waters Treaty: September 19, 1960; IWT in abeyance since April 2025.
• Line of Control (LoC): approximately 740 km; converted from the 1971 ceasefire line.
• Pakistan's Nasr (Hatf-IX) missile: range ~60–70 km; declared tactical nuclear-capable.