Evaluate the legal and strategic significance of India–Pakistan bilateral agreements in the nuclear domain in light of the fact that both nations remain outside the NPT.

The Agreement on the Prohibition of Attack against Nuclear Installations and Facilities (1988), under which India and Pakistan completed their 35th consecutive exchange of lists on 1 January 2026, is the only operative nuclear restraint between two states that stand outside the NPT [2]. Its worth is real but narrow.

Legal significance

• A binding bilateral treaty: signed 31 December 1988, in force 27 January 1991; Article I obliges each side not to undertake, encourage or participate in any attack on the other's nuclear installations [1][3].
• It fills a normative vacuum. As non-parties to the NPT, neither state carries multilateral non-proliferation obligations or full-scope IAEA safeguards; the pact demonstrates that restraint can be created by treaty-making outside global regimes.
• Its wide definition — power and research reactors, fuel fabrication, enrichment, isotope separation and reprocessing facilities — gives the obligation real coverage [3].
• Yet the instrument is declaratory: lists are self-reported, with no verification, inspection, dispute-settlement clause or third-party depository. Compliance rests solely on reciprocity.

Strategic significance

• It is the most consistently implemented CBM in the relationship, surviving Kargil, the 2001 Parliament attack, Pulwama–Balakot and the May 2025 hostilities [2].
• The annual exchange works as a minimum diplomatic signal — proof that institutional channels function even when political dialogue is frozen, alongside the 2008 Consular Access Agreement's prisoner-list exchange [4].
• Signed before the 1998 tests, it embedded restraint prior to overt nuclearisation.
• Its limits are equally clear: it protects installations, not arsenals, says nothing on doctrines, delivery systems or crisis communication, and has not deterred conventional escalation.

On balance, the nuclear CBM architecture is procedurally durable but substantively thin — it prevents the worst outcome without building trust. Extending it through Lahore-style risk-reduction mechanisms, a functioning hotline and a revived humanitarian track on fishermen would convert a surviving ritual into genuine strategic stability, advancing the peace and institution-building goals of SDG 16.