The title of this post comes from Albert Wohlstetter’s 1976 seminal essay Moving Towards Life in a Nuclear Armed Crowd. In that essay he contemplated a world in which several nations had nuclear weapons, and also the strategic logics governing their proliferation, deployment and use (mainly as a deterrent). For years after his essay was published, the number of nuclear-armed states remained low. Today they include the US, UK, France, PRC, Russia, India and Pakistan, with Israel as an unacknowledged member of the club and Iran and North Korea as rogue aspirants. At one time late in the Cold War, Argentina, Brazil and South Africa had nuclear weapons programs but abandoned them as part of the their transitions to democracy. By and large the Non-Proliferation Treaty (NPT) has kept the acquisition of nuclear weapons in check, something that along with various arms control agreements between the US and USSR/Russia (SALT I and II, START, the Intermediate Range Nuclear Forces Treaty (INF)), helped stabilise a low number nuclear weapons state status quo for five decades.
But that may be about to change. Not only have nuclear powers like the PRC, India and Pakistan opted to not be bound by international arms control agreements and others like Israel, Iran, India, Pakistan and DPRK have ignored the NPT. All of the major bilateral treaties between the US and Russia governing strategic and tactical nuclear weapons have been allowed to lapse. The non-proliferation regime now mostly exists on paper and is self-enforcing in any event. There are no genuine compliance mechanisms outside of voluntary compliance by States themselves, and in the current moment nuclear armed states do not wish to comply
The situation has been made considerably worse by the re-election of Donald Trump to the US presidency. Although he speaks of securing some sort of “deal” with Iran that freezes its nuclear weapons development programs, his threats of withdrawing from NATO, including withdrawal of security guarantees under the collective security provisions of Article 5 of the NATO Charter, coupled with his pivot towards Russia in its conflict with Ukraine, has forced some countries to reconsider their approach towards nuclear weapons. Polish Prime Minister Donald Tusk told his parliament this week that Poland “must reach for the most modern possibilities, also related to nuclear weapons and modern unconventional weapons” because of the threat of Russian aggression and unreliability of the US as a security partner under such circumstances. Similarly, French President Emmanuel Macron has floated the idea of extending a French “nuclear umbrella” over Europe (read: NATO and the EU) should the US renege on its Article 5 obligations.
The perception that the US is no longer a reliable security partner, at least under the Trump administration, must be considered by front-line states such as South Korea and Taiwan, perhaps even Japan and Germany, that are threatened by nuclear armed rivals and which until now were heavily dependent on the US nuclear deterrent for defending against aggression from those rivals. The situation is made worse because Trump is now using extortion (he calls it “leverage”) as part of his approach to security partners. His demands that Ukraine sign over strategic mineral rights to the US and that Panama return control of the Panama Canal to the US under threat of re-occupation are part of a pattern in which US security guarantees are contingent on what the US can materially get in exchange for them. Even then, Trump is notoriously unethical and prone to lying and changing his mind, so what US guarantees may be offered may be rescinded down the road.
Trump wants US security partners to spend 2 to 5 percent of GDP on defence and threatens to not honour US agreements with them if they do not. Although this may well force some NATO members and others to up their spending on defence (as Australia, Poland and South Korea already do), the one-size-fits-all percentage of GDP demand fails to recognise the circumstances of small and medium democracies such as NZ, Portugal and Holland, among others. Trump may call it driving a hard bargain, others may say that his approach is “transactional,” but in truth he is extorting US allies on the security front in order to gain concessions in other areas. And for “whatever” reason, he admires Putin and deeply dislikes Ukrainian president Zelensky as well as Canadian Prime Minister Trudeau, something reflected in his approach to bilateral issues and the way he talks about them. The personal is very much political with Trump, and he is an impulsive bully when he believes that it suits him to be.
The US pivot towards Russia under Trump has been much discussed in terms of its implications for the world order, strategic balancing among Great Powers and the future of the US-centric alliance systems in Europe and Asia. It truly is a major transitional moment of friction in world affairs. But the issue of nuclear proliferation as a response to the changed US stance has gone relatively unnoticed. Remember, these are not the moves of rogue states that are hostile to the old liberal international order. These are and may well continue to be the responses of democratic and/or Western aligned states that were integral members of that old order, who now feel abandoned and vulnerable to the aggression of authoritarian Great Powers like Russia and the PRC.
In the absence of the US nuclear guarantee and in the security vacuum created by its strategic pivot, indigenous development and deployment of nuclear weapons becomes a distinct possibility for a number of states that used to have the US nuclear guarantee but now are unsure if that is still true, and have the technological capabilities to do so. The global spread of high technologies makes the pursuit of nuclear weapons easier than in previous eras, and if time, money and willpower are devoted to doing so, nuclear proliferation will inevitably happen. Remember that nuclear weapons are primarily deterrent weapons. They are designed to deter attacks or retaliate once attacked, but not to strike first (unless destruction of the targeted society is the objective and retaliation in kind is discounted). They are the ultimate hedge against aggression, and now some non-nuclear states are reconsidering their options in that regard because the US cannot be trusted to come to their defence.
Russia has repeatedly raised the spectre of using tactical nuclear weapons in Europe should it feel cornered, but even the Kremlin understands that this is more an intimidation bluff aimed at comfortable Western populations rather than a serious strategic gambit. But that only obtains if the US still honors its nuclear defense commitments under NATO Article 5, and if it no longer does, then the Europeans and other US allies need to reassess their nuclear options because Russian threats must, in that light, be considered sincere.
Even so, first use of nuclear weapons, specially against a non-nuclear state, remains as the ultimate red line. But that line has been blurred by Trump’s equivocation. Nuclear hedging has now become a realistic option not just for front-line democratic states facing authoritarian aggression, but with regards to the US itself because it is a no longer a reliable democratic ally but is instead a country dominated by an increasingly authoritarian policy mindset at home and in its relations further abroad. Ironically, the “madman with a nuke” thesis that served as the core of deterrence theory in the past and which continues to serve as the basis for resistance to Iran and North Korea’s nuclear weapons programs can now be applied to the US itself.
There are two ways to look at the situation. On the one hand the chances of nuclear proliferation have increased thanks to Trump’s foreign policy, especially with regards to US international commitments and alliance obligations. On the other hand, deterrence theory is in for an overhaul in light of the push to proliferate. This might re-invigorate notions of flexible response and moves to provide stop gaps in the escalatory chain from battlefield to strategic war. Notions of nuclear deterrence that were crafted in the Cold War and which did not change with the move from a bi-polar to a unipolar to a multi-polar international system must now be adapted to the realities of a looser configuration–some call them metroplexes or constellations–in which the spread of advanced technologies makes the possibility of indigenous development of nuclear deterrence capabilities more feasible than in the old security umbrella arrangements of previous decades.
The irony is that it is the US pivot towards Russia that has popped the cork on the nuclear proliferation bottle. States like Iran and the DPRK have been subject to sanctions regimes that have slowed the development of their nuclear arsenals. But that happened against the backdrop of the US providing binding security guarantees to its allies, offering a credible nuclear deterrent to those who would seek to do harm against them and giving material support to the NPT. That is not longer true. It is the US that now must be viewed with suspicion, if not fear. The briefcase with nuclear codes is within a few arm’s lengths wherever Trump goes and he is now staffing the highest ranks of the US military-security complex with personal loyalists and sycophants rather than seasoned, politically neutral, level headed professionals with experience in the practice of strategic gamesmanship, including nuclear deterrence and war planning. Under those circumstances it would be derelict for military and political leaders in erstwhile US allied states to not hedge their bets by considering acquiring nuclear weapons of their own.
This was not what Wohlstetter envisioned when he wrote his essay. But after a period where that nuclear armed crowd appeared to stabilise and even shrink, some of his insights have become relevant again. It may no longer be about MAD (mutual assured destruction), but it sure is SAD.