Munitions Production Cannot Scale to Wartime Demand Due to Industrial Base Atrophy

The war in Ukraine has exposed a critical vulnerability in the U.S. defense industrial base: the inability to produce munitions at anything close to wartime consumption rates. Ukraine has been firing 6,000 to 8,000 artillery rounds per day, consuming in one month what the U.S. produces in a year. The U.S. military's own war plans for a Taiwan contingency estimate ammunition expenditure rates that would exhaust existing stockpiles within days to weeks. Yet the production lines for key munitions -- 155mm artillery shells, Stinger missiles, Javelin anti-tank missiles, HIMARS rockets -- operate at peacetime rates with multi-year backlogs. This matters because deterrence depends on the credible ability to fight and sustain a high-intensity conflict. If adversaries calculate that the U.S. will run out of precision-guided munitions in the first two weeks of a conflict, deterrence fails. The CSIS wargame for a Taiwan scenario found that the U.S. would expend its entire inventory of long-range anti-ship missiles in less than a week. Replenishment at current production rates would take years. This is not a theoretical concern -- it is a mathematical certainty that the U.S. cannot sustain a major conflict with its current industrial capacity. The consequences extend beyond U.S. readiness. Allies and partners depend on U.S. munitions production to replenish their own stocks. Transfers to Ukraine have drawn down U.S. and allied inventories of Stingers, Javelins, and 155mm rounds with no rapid path to replenishment. Every missile sent to Ukraine is one fewer available for a Pacific contingency. The U.S. is simultaneously trying to arm Ukraine, deter China, and maintain readiness globally -- and it lacks the industrial capacity to do any of these adequately. The structural reason this persists is that the U.S. deliberately allowed its munitions industrial base to atrophy after the Cold War. The 'peace dividend' of the 1990s closed factories, consolidated suppliers, and shifted investment from production capacity to R&D for advanced systems. The remaining production lines are optimized for efficiency at low peacetime rates, not for surge capacity. Key components -- solid rocket motors, energetics, specialty steel -- have single suppliers, and expanding capacity requires years of investment in facilities, workforce training, and supply chain development. The Pentagon has committed $30 billion to munitions production acceleration, but the constraints are not primarily financial. They are physical: there are not enough production lines, not enough trained workers, not enough raw materials supply chains to scale up rapidly. Building a new ammunition plant takes 3-5 years even with unlimited funding. The U.S. optimized its defense industrial base for a world where major wars were unlikely, and now faces the consequences of that bet.