The Defence Spending Supercycle: How Geopolitical Risk Is Creating a New Industrial Boom
Defence spending is not a cyclical phenomenon responding to short-term threat perception. It is a capital allocation decision made over decades, calibrated to threat environments that are perceived to be structural, locked into procurement programmes that run for 10–30 years, and subject to industrial base constraints that make rapid scale-up genuinely difficult even when the political will exists. What is happening in 2025–2026 is not a defence spending cycle. It is a structural reset — a simultaneous and coordinated increase in defence budgets across NATO members, Indo-Pacific allies, and a range of non-aligned nations that represents the largest sustained increase in global defence investment since the Cold War. The commercial implications for defence primes, their supply chains, and the dual-use technology companies whose products serve both military and commercial markets are being systematically underestimated by investors and strategists who are still using pre-Ukraine frameworks.
The Numbers That Define the Scale
NATO's 2% of GDP defence spending target, long honoured in the breach by most European members, is now the floor rather than the aspirational ceiling in most alliance capitals. Germany's Zeitenwende — the strategic pivot announced by Chancellor Scholz three days after Russia's full-scale Ukraine invasion — allocated EUR 100 billion in special defence funding and committed to persistent 2%+ GDP defence spending, reversing 30 years of post-Cold War defence budget contraction. Poland is spending 4% of GDP on defence in 2026, the highest among NATO members, building the largest land army in Central Europe from a combination of domestic procurement and US-origin equipment. The Netherlands, Sweden, Denmark, and Finland have all dramatically increased their defence budgets, with Sweden and Finland's NATO accession adding two well-equipped militaries to the alliance. The cumulative European defence spending increase from 2022 to 2026 represents approximately USD 200 billion in additional annual expenditure across the continent — a market expansion of extraordinary magnitude for a capital equipment industry that had been in managed decline since the 1990s.
Asia-Pacific is experiencing a parallel escalation with different drivers. Japan's decision to double its defence budget to 2% of GDP by 2027 — abandoning the post-war constitutional constraint that had limited defence spending to 1% for decades — authorises approximately USD 50 billion in additional annual defence procurement. The specific priorities are clear: long-range strike capability (Tomahawk cruise missiles, domestic stand-off munitions), maritime surveillance and anti-submarine warfare, and the F-35 fleet expansion that makes Japan one of the largest operators of that platform globally. South Korea, Taiwan, and Australia are all in sustained build-up cycles. The common driver across these geographies is the same: a reassessment, crystallised by Ukraine, that deterrence requires credible conventional warfighting capability and that the peace dividend assumption underlying post-Cold War defence planning was a strategic miscalculation.
The Defence Industrial Base Constraint That Shapes the Opportunity
The most commercially significant aspect of the current defence spending expansion is the mismatch between the demand surge and the industrial base's current production capacity. The Western defence industrial base contracted severely after the Cold War — production lines closed, suppliers exited, skilled workforces dispersed into commercial industries — and cannot ramp immediately in response to demand signals that have appeared over 18–24 months. The artillery ammunition shortfall exposed by Ukraine's consumption rates — Ukrainian forces were firing 5,000–7,000 155mm shells per day while the US and European industrial bases could collectively produce approximately 14,000 shells per month at the beginning of 2023 — is the clearest illustration of a systemic production gap that extends across virtually every category of consumable munition, missile, and precision guided weapon. The US Department of Defense's multi-year procurement contracts for 155mm artillery shells, HIMARS rockets, Stinger missiles, and Javelin anti-tank missiles represent an emergency industrial expansion programme, not a procurement cycle.
The industrial base constraint creates a distinctive commercial dynamic. Defence prime contractors — Lockheed Martin, RTX (formerly Raytheon Technologies), Northrop Grumman, BAE Systems, Rheinmetall, Leonardo — are not simply experiencing demand growth; they are being asked to re-establish production capabilities that atrophied over 30 years of rationalisation. Rheinmetall, whose Düsseldorf facilities are producing artillery shells at rates not seen since the Cold War, has committed EUR 3 billion to capacity expansion through 2026. BAE Systems is reopening UK munitions facilities that had been mothballed since the 1990s. The US Army's multi-billion-dollar investments in new artillery production facilities in Texas and Pennsylvania represent the first major new munitions manufacturing infrastructure built in the United States since Vietnam. The lead times for this industrial expansion — 18–36 months from investment decision to initial production for most munitions categories — mean the defence spending supercycle will sustain elevated revenues for the industrial base through at least 2028–2030 regardless of whether any specific geopolitical conflict is resolved in the near term.
Dual-Use Technology: The Most Commercially Dynamic Segment
The highest-growth and most strategically interesting segment of the defence spending supercycle is not traditional platforms — tanks, fighters, warships — but the technology systems that make those platforms effective: command and control software, satellite communications, counter-drone systems, cyber warfare infrastructure, autonomous surveillance, and AI-enabled intelligence analysis. This is where the spending acceleration creates the most investment opportunity, for two reasons. First, these technology categories do not require the long-lead industrial base build-up that constrains traditional munitions and platform procurement — software-intensive systems scale faster than physical production lines. Second, many of the most important companies in these categories are dual-use technology businesses whose capabilities serve both commercial and defence markets simultaneously.
Palantir Technologies, whose AI-powered data analytics platforms are deployed across US and Allied military intelligence operations as well as commercial enterprise clients, reported USD 828 million in US government revenue in 2025 — growing at 45% annually as defence and intelligence agencies accelerate AI adoption for targeting, logistics, and operational planning. SpaceX's Starlink has become the single most important military communications capability deployed in Ukraine, delivering satellite internet connectivity to forward combat units at a scale that no military satellite programme had previously achieved. Shield AI, Joby Aviation (autonomous aircraft for logistics and ISR), and Anduril Industries (autonomous defence systems, AI-powered border surveillance) represent the wave of defence-focused technology companies building capabilities specifically optimised for the emerging operational environment. The common thread is autonomy — whether in surveillance, logistics, or fire control — and the convergence between commercial AI development and military application that makes the defence technology investment landscape more accessible to technology-oriented investors than traditional defence prime investing.
The Investment Implications: What the Market Is Mispricing
Defence prime contractor valuations in 2026 remain below historical peaks relative to earnings, despite the multi-year revenue visibility created by the backlog of programme commitments now on their books. Lockheed Martin's F-35 programme alone represents a USD 400 billion lifetime contract value across committed international customers; RTX's Patriot missile system has a backlog that exceeds five years of production at current rates. The market's underpricing of defence contractors reflects lingering skepticism that the current spending environment will persist — a continuation of the reflexive assumption that defence spending cycles mean revert. The structural case against mean reversion is compelling: the threat environment that is driving the spending increase has not materially changed, the industrial base constraints that require sustained long-term investment are real, and the political consensus in favour of elevated defence budgets extends across governments that historically disagreed on defence spending adequacy. The correct framework for analysing current defence contractor valuations is not a cycle model — it is a structural reassessment of the global security environment that changes the base level of defence investment required to maintain deterrence.