Yves here. Satyajit Das provides a high-level look at the costs and benefits of militarization. There may have been a time when manufacturing was less specialized (think 1930s and 1940s machine shops) where bulking up for huge production of weaponry required only some investment in specialized components. But modern war, particularly when fought US-style, with lots of fussy high priced kit, means single-purpose investment, which Das argues, also have limited spill-over benefits.
Mind you, it may not have to be that way even now. Russia in its Ukraine war production expansion, is endeavoring to have as much of its new capacity as possible be dual-use, as able to later or contemporaneously make civilian goods.
By Satyajit Das, a former banker and author of numerous technical works on derivatives and several general titles: Traders, Guns & Money: Knowns and Unknowns in the Dazzling World of Derivatives (2006 and 2010), Extreme Money: The Masters of the Universe and the Cult of Risk (2011) and A Banquet of Consequence – Reloaded (2016 and 2021). His latest book is on ecotourism – Wild Quests: Journeys into Ecotourism and the Future for Animals (2024). This piece was first published in the New Indian Express.
Mars, the powerful Roman god of war, is ascendant. Globally, defence spending has reached $2.7 trillion in 2024, a 9.4 percent annual increase, and, on present trends, will reach $6.7 trillion by 2035.
The rise of militarism is disconcerting. First, it represents a substantial diversion of economic resources marking a shift from the post-cold war peace dividend to a war tax. Since 2022, global military spending has risen from 2.2 per cent to 2.5 percent of global GDP and from 6.6 to 7.1 percent of government budgets.
After the collapse of the Soviet Union, cuts in defence spending boosted economic growth. The US defence budget halved from 6 percent of GDP to 3 percent between 1989 and 1999. Europe’s defence spending declined to around 2 percent of GDP, in part due to their now problematic dependence on US protection. Across the EU, this freed up money for private investment and social programs which increased from 36.6 per cent in 1995 to 41.4 per cent before the pandemic. Europe’s peace dividend may be as much as €4.2 ($4.9) trillion over a 30-year period. The reversal must be financed by unpopular reductions in existing spending or higher borrowing, which is difficult for highly indebted countries like Japan, some European states, and the UK.
Second, defence spending may not generate economic activity. Beyond the initial expenditure, there is minimal multiplier effects as most goods have limited consumption or investment value. It is spent on items which become obsolete if unused or destroyed if deployed in combat. There is a diversion of resources and talent. In the longer term, any stimulatory effects of increased military spending are outweighed by higher inflation, budget deficits, and higher taxes which require painful adjustments. If a state does not have the required indigenous industries, then defence spending mainly benefits foreigners, primarily major armaments exporters like the US, Russia, China, France, and Germany. Then, there is human and material costs of wars.
Third, the effectiveness of defence spending is uncertain. Given that the required capabilities are a function of the adversary, the type of conflict and its duration, it is unclear what target fixed percentage of GDP is appropriate or sufficient. As the Ukraine war illustrates, no matter how high the state of preparedness, actual conflict requires armaments of different type and a scale of output which is difficult.
The money is frequently eaten up by salaries, pensions, and administration costs. More than one-third and one-half of US and European defence spending, respectively, goes on personnel. Less than 30 percent and 20 percent of US and European spending is on investment.
Advanced weapon systems, the now favoured strategy, are often duds. The Golden Dome missile defence system (forecast cost $500 billion to $3.6 trillion) may not work like its failed precursor the Star Wars defence shield. Weapons systems. which take years to develop and deliver, may become redundant due to changes in the type of conflict or advances in countermeasures. Development of cheap drone warfare, which took pundits by surprise, has made some technologies obsolete. Anti-ship hypersonic missiles make expensive carrier fleets vulnerable.
Defence products rarely meet their specifications due to long development processes, changing requirements, complex or novel technologies, design issues, delays, massive cost overruns, worker and supply shortages. Military production is constrained by complex supply chains. American and European attempts to increase their defence capabilities are likely to be hampered by their reliance on potential adversaries for critical materials, such as rare earths, uranium, and other elements as well as semi-conductors. High-tech weaponry requires frequent expensive maintenance meaning extensive redundancy to ensure availability. Trained and skilled personnel to build and operate such armaments are increasingly scarce. Projects are often scaled down and eventually scrapped at great public expense.
For those without large defence industries, reliance on foreign suppliers creates dependencies. Australia’s planned AUKUS nuclear powered submarine fleet makes it reliant on the US and UK for design, critical technologies, and fuel reducing its value.
Fourth, extra spending on defence does not guarantee security. It leads to accelerating arms races where any decisive advantage is quickly lost triggering cost spirals as nations try to keep up. It can lead to war where fears of an established power about the rise of a competitors leads to conflict (the Thucydides trap). In 1914, Germany rushed to war with Russia fearing that the latter’s rapid industrialisation would imminently surpass their capabilities.
Availability of arms fuels conflict. Russian playwright Anton Chekhov argued that “one must not put a loaded rifle on the stage if no one is thinking of firing it.” That holds in geopolitics as in drama.
Fifth, as Eisenhower, Galbraith and C. Wright Mills foresaw, the unwarranted influence of the military-industrial complex weakens democracy. The defence technostructure requires centralisation and bureaucracy to assert control over resources undermining markets and capitalism as war is the ultimate state directed activity. Today, the focus on cyber, drone, satellite, intelligence gathering and psychological warfare has created a powerful group of techno-kings, such as Palantir. These groups, who once saw defence as morally tainted, now dominate the new defence-tech ecosystem.
But political impetus for greater defence spending remains strong. It is popular with voters with little idea about the subject. Leaders, bamboozled by generals seeking the latest toys, can indulge in rhetorical fantasy targeting citizen’s baser nationalist instincts and racist biases. It makes for good photo opportunities. Politicians feel strong in the company of warriors. Journalist Robert Fisk held that one reason that recent generations of leaders initiate wars is that most have never experienced its futile horror firsthand. Even where eligible, many avoided military service through connections, health issues (the US President’s exemption for student deferments and spontaneous bone spurs on his feet) or escaped direct combat postings.
The argument in favour of the increase in defence capabilities is a trite one: defence is expensive but cheaper than war or a defeat. It falsely frames the problem discounting peaceful co-existence, negotiated resolution of disputes, and non-interference in the domestic affairs of others. Even Churchill, who was no shrinking violet, urged “jaw-jaw” over “war-war.”
The embrace of violent conflict and military capabilities points to a deep self-destructive flaw in humans. The 1970s classic Barrett Strong and Norman Whitfield song summed it up: “War… What is it good for? Absolutely nothing.”
© Satyajit Das 2026 All Rights Reserved


Maybe WW3 will be the war to end all wars.
Starting to look like Trump’s and Bibi’s only recourse to stave off ignominious defeat. Because there is no Sanity Clause in the WH. And certainly none in Jerusalem or Tel Aviv. Diplomatic intervention by the sane superpowers Russia and China might be the Deus ex Machina needed to save the world. But it’s hard to imagine how at this point that would work. One war or another, the era of US as the world’s hegemon is over.
Excellent summary of the problems with “investing” in “defense” withno robust diplomatic mechanisms in place as a countervailing force. The US of A under Trump1 and SoS Rex Tillerson laid waste to the increasingly marginalized State Dept. Ever since our “victory” in the Cold War, we’ve chosen war over diplomacy–every problem looks like a nail in need of hammering is the analogy that fits. Gun culture and Hollywood support the “tough guy” image our presidents like to assume–Trump to an extreme degree. Thanks largely to our geographic isolation, we’ve been spared the collateral effects of the recent wars we’ve caused, until now. We’re about to discover what Franklin wrote: “There never was a good war, or a bad peace.”
‘War…What is it good for? Absolutely nothing’ is Motown, 1969, initially by the Temptations and even by Bruce Springsteen in 1985. The best and iconic performance is by Edwin Starr. There are several YouTube videos of him performing it. I found the kinetic YouTube video “War-Edwin Star/The Midnight Special” absolutely wonderful and brought back memories of my youth and the times. I’ll try to link it https://www.youtube.com/watch?v=K9j7HjrBRr8&list=RDK9jrBRr88istartradio=1
A recurring phrase from LBJ and others of war and the attempt to balance it with the Great Society and the War on Poverty was “Guns and Butter.” Joesph Maiolo’s “Cry Havoc: How the Arms Race Drove the World to War, 1931-1941″ includes a Goebbels quote ‘We can do without butter. but not guns, because butter could not help us if we are attacked one day.’ The current oft repeated Orwellian shorthand phrase is ‘Peace through strength.” A review of Cry Havoc adds information of FDR’s mid 30’s efforts to rearm and
the failure the naval limitation treaty. https://www.historyda.org/post/book-review-cry-havoc-how-the-arms-race-drove-the-world-to-war-1931-1941
Both parties have abandoned arms limitation and Bush II and Trump repudiated the essential arms treaties of Republican presidents Nixon and Reagan. We desperately need to reintroduce arms control into the political conversation.
Getting tired of hearing Eisenhower praised for his wisdom in warning of the MIC. Eisenhower created it!
This is like imagining JFK was a great peacemaker on the basis of one speech, written by Tex Sorensen. Or believing that DJT is the peace president!
We should judge these guys by their deeds, not their platitudes.
Not just his 1963 Commencement Address at American University. Kennedy had issued directives for troop withdrawals from SE Asia starting in December of 1963. His assassination put an end to those plans. IMHO, Kennedy was the first and last president to oppose the CIA/Deep State. His death seems to have made a lasting impression on all his successors: oppose the Deep State at your peril.
https://www.nybooks.com/articles/2007/12/06/jfks-plans-to-withdraw/
Without wishing to advance the cause of war, I don’t understand the criticism that it has a low multiplier. Creating government money and paying to firms to build weapons results in money paid to labour and other firms. There is a classic multiplier. Now, if you raise taxes to sterilise the MMT funds created, there is less of multiplier, perhaps none, but these things are complex and distributional: an injection of investment in the rust belt goes a lot further than in Silicon Valley. As Keynsianism goes, it’s no worse but less enjoyable than spending on bread and circuses.
What I think Mr Das was trying to say is that military spending does not increase useful productive capacity, except where there might be dual use. That seems a fair statement. It still isn’t the worst use of money to create real capital: if it were spent on bread and circuses, the bakeries might be repurposed but the clown cars, dancing horses and sequined leotards would not.
In fact, for deeptech, the military may be one of the best sponsors: we would not have modern semiconductors, computers, mobile ‘phones, the Internet, cryptography or compression algorithms without US and Allied investment in radar, missile guidance, flight surface control, spy satellites, bureaucracy and operations theory. Necessity is the mother of twins, invention and investment!
The MIC may be a provident sponsor of invention, but it is not the only motivator. See: Edison, Salk, and others.
Fair. But the Royal Navy sponsored the longitude prize, Napoleon er, cough, galvanised the tinned food industry, haber invented the Haber-Bosch process to liberate Germany from British and French stranglehold on guano/saltpetre deposits, WW2 scaled up antibiotic production to treat soldiers in D-Day etc. etc.
Military demand – long-term, mission critical, cost insensitive, subject to competitive conditions – has been just what many nascent industries needed.
Perhaps we can agree that a mission rather than a profit motive has been the best driver generally of invention, whether Salk or Nobel?
Charles Tilly reputedly said, “war made the state and the state made war.”
Also, see Carroll Quigley’s Weapons Systems and Political Stability
https://www.goodreads.com/book/show/991684.Weapons_Systems_and_Political_Stability
“The Military and the Monetary will always find a Way”.