What Happened
- Escalating geopolitical tensions have reignited concerns about nuclear proliferation, with multiple nations reassessing their nuclear postures in what analysts describe as an "atomic tug of war"
- The expiry of the New START treaty on February 5, 2026 has left the world without any bilateral nuclear arms control agreement between the US and Russia for the first time since 1972
- The Iran conflict and its potential nuclear dimensions have raised fears of a regional proliferation cascade, with neighbouring states signalling interest in nuclear capabilities
- The erosion of unity among the five recognized Nuclear Weapon States (P5) under the NPT has weakened the collective ability to deter proliferation
Static Topic Bridges
Nuclear Non-Proliferation Treaty (NPT) -- 1968
The Treaty on the Non-Proliferation of Nuclear Weapons (NPT) is the cornerstone of the global non-proliferation regime. Opened for signature in 1968 and entering into force in 1970, the NPT rests on three pillars: non-proliferation (Articles I and II), disarmament (Article VI), and the right to peaceful use of nuclear energy (Article IV). It recognizes five Nuclear Weapon States (NWS) -- the US, Russia, UK, France, and China -- who tested weapons before January 1, 1967.
- 191 state parties -- the most widely adhered-to arms limitation treaty; only India, Pakistan, Israel, and South Sudan remain outside
- Article I prohibits NWS from transferring nuclear weapons to any recipient; Article II prohibits non-NWS from acquiring them
- Article III mandates IAEA safeguards on all nuclear material in non-NWS parties
- Article VI commits all parties to pursue negotiations on nuclear disarmament -- the most contentious provision, with NWS criticized for inadequate progress
- Review Conferences held every five years; the 2015 and 2020 RevCons failed to produce consensus outcome documents
- India's position: refuses to sign, arguing the treaty is discriminatory as it creates a permanent two-tier system; India conducted nuclear tests in 1974 (Smiling Buddha) and 1998 (Pokhran-II)
Connection to this news: The erosion of the NPT framework -- through lack of disarmament progress by NWS and potential new proliferators -- exemplifies the "atomic tug of war" between arms control norms and strategic security calculations.
New START Treaty (2010) and Its Expiry
The New Strategic Arms Reduction Treaty (New START) was the last remaining bilateral nuclear arms control agreement between the US and Russia. Signed in April 2010 by Presidents Obama and Medvedev, it entered into force on February 5, 2011, and was extended in 2021 for five years until February 5, 2026, when it expired.
- Central limits: 1,550 deployed strategic nuclear warheads; 700 deployed ICBMs, SLBMs, and heavy bombers; 800 deployed and non-deployed launchers
- Verification regime: 18 on-site inspections per year, data exchanges, and notifications
- Russia suspended participation in February 2023 citing the Ukraine conflict, though both sides continued to observe numerical limits
- Treaty could only be extended once under its terms -- the February 2026 expiry was final
- Combined US-Russia arsenals (~11,000 warheads) constitute approximately 90% of global nuclear weapons
- No successor agreement has been negotiated; both nations are modernizing their nuclear arsenals
Connection to this news: The expiry of New START removes the last transparency mechanism between the world's two largest nuclear powers, increasing the risk of an uncontrolled arms race that could fuel proliferation elsewhere.
IAEA Safeguards System
The International Atomic Energy Agency (IAEA), established in 1957 under its Statute, administers international safeguards to verify that nuclear material is not diverted from peaceful uses to weapons. Under NPT Article III, non-NWS must conclude Comprehensive Safeguards Agreements (CSAs) with the IAEA covering all nuclear material in their territory.
- IAEA headquartered in Vienna; currently applies safeguards in 190 states
- Three types of agreements: Comprehensive (NPT non-NWS), Voluntary Offer (NWS), and Item-Specific (non-NPT states like India, Pakistan, Israel)
- Additional Protocol (INFCIRC/540) provides enhanced inspection authority -- complementary access, environmental sampling, expanded declarations
- India-specific safeguards: Under the 2008 India-US Civil Nuclear Deal, India placed 14 civilian reactors under IAEA safeguards while keeping strategic facilities outside
- India ratified the Additional Protocol in 2014
Connection to this news: As proliferation risks grow, the effectiveness of IAEA safeguards becomes critical. The agency's ability to detect clandestine nuclear activities is central to maintaining any semblance of nuclear order in the emerging "third nuclear age."
Key Facts & Data
- NPT opened for signature: July 1, 1968; entered into force: March 5, 1970
- Five NPT-recognized NWS: US, Russia, UK, France, China (tested before January 1, 1967)
- Non-NPT nuclear-armed states: India (tested 1974, 1998), Pakistan (1998), Israel (undeclared), North Korea (withdrew from NPT 2003)
- New START expired: February 5, 2026 -- first time since 1972 with no US-Russia arms control treaty in force
- New START limits: 1,550 deployed warheads, 700 deployed delivery vehicles per side
- Global nuclear warhead inventory (2025 SIPRI estimate): approximately 12,100 warheads worldwide
- Doomsday Clock (2026): set at 89 seconds to midnight -- closest ever
- India-IAEA safeguards: 14 civilian reactors under safeguards; strategic programme remains outside