1. Core Legal Answer & Context: The Treaty on the Prohibition of Nuclear Weapons (TPNW), adopted in 2017, is a landmark international agreement that aims to achieve the complete elimination of nuclear weapons. It represents a significant normative shift by explicitly prohibiting a wide range of activities related to nuclear weapons, similar to prohibitions on chemical and biological weapons.

Main Provisions of the TPNW:

• Comprehensive Prohibition (Article 1): The core of the treaty is a blanket prohibition on nuclear weapons. States Parties undertake never under any circumstances to:
  • Develop, test, produce, manufacture, otherwise acquire, possess, or stockpile nuclear weapons or other nuclear explosive devices.
  • Transfer to any recipient whatsoever nuclear weapons or other nuclear explosive devices or control over such weapons or explosive devices directly or indirectly.
  • Receive the transfer of or control over nuclear weapons or other nuclear explosive devices directly or indirectly.
  • Use or threaten to use nuclear weapons or other nuclear explosive devices.
  • Assist, encourage, or induce, in any way, anyone to engage in any activity prohibited to a State Party under this Treaty.
  • Seek or receive any assistance, in any way, from anyone to engage in any activity prohibited to a State Party under this Treaty.
  • Allow any stationing, installation, or deployment of any nuclear weapons or other nuclear explosive devices on its territory or at any place under its jurisdiction or control.
• Verification and Disarmament (Articles 3 & 4): For states that possess nuclear weapons upon joining the treaty, it mandates a time-bound, legally binding framework for the verifiable and irreversible elimination of their nuclear weapons program. Non-nuclear-weapon states must maintain their existing non-proliferation safeguards.
• Victim Assistance and Environmental Remediation (Article 6): States Parties are obliged to provide assistance to individuals affected by the use or testing of nuclear weapons and to take measures for the environmental remediation of contaminated areas.
• Universalization (Article 12): Encourages all states to sign, ratify, accept, approve, or accede to the Treaty.

2. Relevant Statutes and Sections:

• Treaty on the Prohibition of Nuclear Weapons (TPNW) 2017.

3. Important Landmark Cases:

• Advisory Opinion on the Legality of the Threat or Use of Nuclear Weapons (ICJ, 1996): While predating the TPNW, the ICJ's opinion established that the threat or use of nuclear weapons would generally be contrary to the rules of international law applicable in armed conflict, particularly the principles and rules of humanitarian law. This opinion provided a significant legal and moral impetus for the eventual negotiation of the TPNW, by highlighting the illegitimacy of nuclear weapons under existing international law.

4. Clear Conclusion: While the TPNW is a monumental achievement in establishing a clear legal norm against nuclear weapons and stigmatizing their possession, it is unlikely to lead to the complete elimination of nuclear weapons in the short to medium term. The primary reason is the non-participation of all nuclear-weapon states (NWS) and their allies, who view nuclear deterrence as essential for their national security. These states argue that the TPNW undermines the existing non-proliferation regime (NPT) and does not offer a verifiable disarmament pathway that addresses their security concerns. Therefore, while the TPNW strengthens the moral and legal case for disarmament and mobilizes civil society, its practical impact on the arsenals of NWS remains limited without their adherence. Complete elimination will require a fundamental shift in the security doctrines of nuclear-armed states and a universally accepted, verifiable disarmament framework.