Forging America's 21st Century Defense Industrial Base

Applying Lessons from the Arsenal of Democracy

By COL Eric A. McCoy

Article published on: September 1, 2024 in the Army Sustainment Fall 2025 Edition

Read Time: < 7 mins

The Russia-Ukraine War has served as a profound strategic shock, exposing a dangerous chasm between America’s defense strategy and its underlying industrial reality. The conflict’s staggering consumption rates of munitions and low-cost drones have stress-tested the U.S. defense industrial base (DIB) and found it wanting. At peak intensity, Ukraine’s daily need for 155 mm artillery shells could exhaust pre-war U.S. monthly production in just over a day, while its monthly consumption of 10,000 drones could deplete the entire U.S. inventory in weeks.

This industrial fragility is the direct result of decades of policy choices favoring peacetime efficiency and just-in-time logistics, which are ill-suited for great-power competition. Compounding this is an acquisition system that takes nearly 12 years to deliver a new capability, a pace incompatible with modern conflict. To rebuild its industrial might, the U.S. must look to its past. The Arsenal of Democracy of World War II was not a miracle but the result of deliberate strategic choices. By applying five critical lessons from that era, the U.S. can forge a resilient 21st century arsenal.

Lesson One: A Coherent National Demand Signal — The War Production Board Imperative

A core element of World War II mobilization was a clear, unified demand signal from the government to industry. Today, the DIB suffers from a chaotic and unpredictable budgetary environment that stifles investment.

President Franklin D. Roosevelt’s War Production Board (WPB) held supreme authority to direct the national industrial effort, converting civilian factories and allocating scarce resources. This centralized control created a single, coherent demand signal, assuring companies that if they retooled to build bombers and tanks, the government would guarantee the necessary materials and contracts. This certainty eliminated market risk and unleashed the full power of the American economy, enabling the production of armaments equivalent to over $2.4 trillion today.

The modern DIB operates under weak and chronically unpredictable demand signals. The most damaging instrument of this uncertainty is the persistent use of continuing resolutions, which freeze spending at previous levels and prohibit new programs or production increases. This budgetary paralysis delays critical modernization of the nuclear triad, halts multi-year munitions contracts, and stops new military construction. For industry, this instability makes long-term planning, investment, and workforce retention impossible. Our major adversaries face no such fiscal dysfunction.

The most effective way to replicate the WPB’s stable demand signal is through the aggressive use of multi-year procurement and block-buy contracting. These tools allow the War Department (DOW) to commit to long-term purchases and provide certainty and investment security to industry. This makes the government a reliable partner willing to pay for an effective industrial base.

Lesson Two: Quantity Has a Quality All Its Own — Designing for Mass Production

America won World War II not only with superior technology but with overwhelming mass. The Arsenal of Democracy understood that a good enough weapon in enormous quantities was often strategically superior to a perfect weapon in insufficient numbers — a lesson the modern DIB has largely forgotten.

Between 1941 and 1945, American shipyards built 2,710 Liberty ships, a feat made possible by a design for production philosophy. The goal was not to build the most advanced ship, but a good-enough ship that could be mass-produced to overwhelm the enemy. The design was simplified, using welding instead of riveting and prefabricated modules to slash construction time from over 230 days to just 42. By 1943, three Liberty ships were completed daily, a rate that proved decisive in the Battle of the Atlantic.

The F-35 Joint Strike Fighter is the antithesis of the Liberty ship model: an exquisite, technologically complex platform whose lifecycle cost is projected to exceed $2 trillion. The pursuit of technological supremacy has imposed a massive sustainment tax, with annual operating costs per jet far exceeding targets and fleet availability rates consistently falling below goals. To stay within budget, the military had to reduce planned flying hours by 21%, a direct trade-off between cost and combat readiness. The jet’s complexity has become a primary driver of unreadiness.

The Russia-Ukraine War has revalidated that quantity has a quality all its own. The DOW must institutionalize a tiered acquisition pathway that rewards designing for mass production, modularity, and ease of sustainment, valuing producibility on par with technological performance. The U.S. must design a force that can absorb attrition and fight at scale, which means relearning the lesson that the best weapon is often the one you have in sufficient numbers.

Lesson Three: Embracing Big Bet Innovation — The Manhattan Project Model

The race to develop the atomic bomb was a paradigm of radical, risk-tolerant innovation, a model that stands in stark contrast to the risk-averse, slow-moving acquisition system of the modern DOW.

The Manhattan Project was a high-risk gamble to develop a war-winning weapon under extreme pressure. Its management, led by GEN Leslie R. Groves, made a critical strategic choice: they funded multiple parallel approaches to the same problem, fully expecting some to fail. For instance, the project pursued three uranium enrichment methods simultaneously, while also developing a separate plutonium pathway. This big bet model recognized that in a high-stakes technological race, the greatest risk is not failure but delay.

The modern DOW acquisition system is a bureaucracy that stifles innovation. Promising new technologies perish in the valley of death — the gap between a successful prototype and a funded program of record. This valley is created by a linear, program-centric system where cost and schedule are locked in years in advance, making it difficult to insert new technology without a lengthy re-budgeting process. The result is a system where the average program takes nearly 12 years to deliver an initial capability.

To compete in rapidly advancing fields, the DOW must replicate the Manhattan Project’s management model by creating empowered innovation vanguards. These organizations, like the Defense Innovation Unit, must be given flexible funding and risk tolerance to pursue high-reward projects and rapidly transition new capabilities to the warfighter, bridging the valley of death.

Lesson Four: Mobilizing the National Talent Base — The Rosie the Riveter Precedent

Advanced weapons are meaningless without the skilled hands to build and maintain them. World War II mobilization recognized human capital as a strategic resource, while today the DIB faces a threatening workforce crisis.

The iconic Rosie the Riveter campaign was the public face of a deliberate, government-led national effort to solve a systemic labor crisis as 16 million Americans went to war. This massive recruitment campaign brought millions of women into industrial jobs. By 1943, women comprised an incredible 65% of the U.S. aircraft industry’s workforce, up from just 1% before the war.

The DIB faces a human capital crisis of similar magnitude today. The manufacturing workforce is aging rapidly, with a quarter of employees at or near retirement age, creating a severe shortage of skilled trades such as welding and machining. With over 800,000 open jobs in U.S. manufacturing, the skills gap could impact gross domestic product by over $1 trillion by 2030. This is a national security challenge that requires a national-level response.

Rebuilding the DIB’s human capital requires a 21st century successor to the Rosie the Riveter effort: a digital arsenal national workforce strategy. This would be a modern patriotic messaging campaign to rebrand skilled trades as national service, massive investment in vocational education and apprenticeship programs, and improved pathways for veterans to transition into DIB careers.

Lesson Five: Integrating Allied Industrial Power — The Lend-Lease Strategy

The Arsenal of Democracy did not arm America alone. A core component of its success was the strategic integration of allied industrial power, a lesson more critical than ever in an era of globalized competition.

The Lend-Lease Act of March 1941 was a strategic masterstroke, empowering President Roosevelt to supply Allied nations with critical materiel without requiring immediate payment. This made America the industrial backbone of the coalition against the Axis powers. The program was vast, dispensing over $50 billion in assistance (nearly $1 trillion today) to over 30 countries, providing everything from tanks and planes to food and fuel. Soviet Premier Joseph Stalin admitted, “Without the machines we received through Lend-Lease, we would have lost the war.” Lend-Lease was a policy of integrated industrial deterrence, recognizing that an ally’s strength is a direct force multiplier.

Today, the U.S. system for defense cooperation is often crippled by bureaucratic barriers that treat allies more like risks than partners, chiefly the International Traffic in Arms Regulations (ITAR) and the foreign military sales (FMS) process. These regulations, born from a Cold War mindset, create a labyrinthian and slow system that disincentivizes allied participation in joint programs and encourages them to buy elsewhere. This undermines the goal of joint co-development of advanced capabilities.

To compete effectively, the U.S. must treat the industrial bases of its closest allies as a strategic extension of its own. This requires aggressively breaking down bureaucratic barriers by expanding ITAR exemptions and reforming the FMS process to be faster and more responsive. The goal must be a seamless ecosystem for co-development and co-production.

The Path Forward

America’s DIB is at a critical inflection point. The Russia-Ukraine War has provided an undeniable warning: the arsenal optimized for peacetime is dangerously fragile for great-power competition. The hollowed-out supply chains, unpredictable funding, risk-averse acquisition culture, and looming workforce crisis are symptoms of a systemic failure to adapt.

The lessons from World War II offer a strategic mindset for revitalization. Rebuilding our industrial might requires adopting the same core principles: a unified national strategy with stable demand signals; a focus on production at scale; a culture of bold, rapid innovation; a mobilized national workforce; and the full integration of allied industrial strength. By implementing these principles, the U.S. can transform its industrial base into a resilient, 21st century arsenal capable of deterring conflict and, if necessary, securing victory.