What does the pace of nuclear proliferation in post-Cold War suggest? (150 words) (2013, 10 Marks)
The end of Soviet–American rivalry was expected to unleash new nuclear states; it did not. Since 1991 only India, Pakistan and North Korea have openly crossed the threshold, while South Africa dismantled its arsenal and Ukraine, Kazakhstan and Belarus surrendered inherited Soviet weapons. The slow pace says several things.
What the slow horizontal pace suggests
- Proliferation is a political choice, not technical destiny. Japan and dozens of others could build weapons and have not; extended deterrence, the NPT norm and the nuclear taboo (Nina Tannenwald) restrain them.
- Regional insecurity drives acquisition. Nearly every case sits in a hostile dyad: India–China–Pakistan, the Korean peninsula, West Asia. This fits the security model of Scott D. Sagan’s “three models” (1996).
- The regime works on willing states, not determined ones. Iraq, Libya and Syria ran secret programmes; North Korea left the NPT in 2003 and tested from 2006. Argentina and Brazil, by contrast, ended their rivalry through mutual inspection.
- Supply controls leak: the A. Q. Khan network sold centrifuge designs to Libya, Iran and North Korea.
What it conceals
- Vertical proliferation: China’s arsenal has roughly doubled since 2020, India’s (about 190) now exceeds Pakistan’s (about 170) (SIPRI, 2026), and New START’s expiry in February 2026 left the two largest arsenals uncapped.
- Latency and hedging: Iran approached the threshold without crossing it; the IAEA found it non-compliant in June 2025, and it was bombed in 2025 and again from February 2026.
- Fraying guarantees: open debate in Seoul and, since 2025, in Warsaw about national or shared deterrents, and Saudi Arabia’s defence pact with nuclear-armed Pakistan (September 2025), show that the credibility of alliances, not technology, now sets the pace.
- Perverse lessons: Libya disarmed and its regime fell; Ukraine gave up its weapons and was invaded. North Korea, with about 60 warheads by SIPRI’s count, draws the obvious conclusion.
Theoretical reading
Kenneth N. Waltz (The Spread of Nuclear Weapons: More May Be Better, 1981) read gradual spread as stabilising; Sagan’s organisational theory warns that each new arsenal adds risks of accident and failed command. India illustrates the middle path: it tested only when regional threat met the closing of options under the CTBT, as K. Subrahmanyam had argued, and then adopted credible minimum deterrence with no-first-use.
Conclusion
The pace suggests that the non-proliferation order has contained spread without resolving it. The danger has moved from the headcount of nuclear states to regional dyads, vertical growth, threshold states and collapsing arms control.