The Minerals That Keep America’s Military Running Are Almost Gone

Washington holds roughly two months of rare earth inventory for defense production. China controls the refining capacity to replenish it. And three African nations are sitting on the deposits that could change everything, if Washington can move fast enough to matter.

Somewhere inside the labyrinth of American defense procurement, a counter is ticking. It measures not bombs or missiles but the obscure metallic compounds inside them: the dysprosium in a missile guidance system, the terbium in a fighter jet actuator, the yttrium coating a jet engine turbine blade. According to people with direct knowledge of the government’s holdings, that counter reads approximately two months.

That is how long the United States can sustain current levels of defense manufacturing using its existing rare earth inventory, before the cupboard runs bare.

The revelation, first reported by the South China Morning Post citing anonymous officials, landed last week at the worst possible geopolitical moment: the United States had begun airstrikes on Iran just days earlier, burning through an estimated $5.6 billion in munitions. President Trump was preparing to meet President Xi Jinping of China for the first time in nearly a decade. 

And China, which controls roughly 90 percent of the world’s capacity to refine rare earth minerals into usable form, had already spent the better part of a year quietly tightening its grip on exports of exactly the materials Washington needs most.

Two months. The number has reverberated through defense circles, commodity trading desks, and African government offices from Kinshasa to Gaborone. It is not simply a supply chain statistic. It is a strategic vulnerability hiding in plain sight.

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To understand the crisis, it helps to understand what rare earth elements actually are, and why they resist easy substitution. The 17 metals that make up the rare earth family are not rare in the geological sense. Deposits exist on every continent. What makes them precious, and what has made China’s dominance so durable, is the chemistry required to turn raw ore into usable products.

The process is acid-intensive, generates low-level radioactive waste, requires enormous quantities of water, and produces refined compounds that must then be alloyed and machined into permanent magnets of extraordinary precision. China spent four decades and tens of billions of dollars building every link in that chain, subsidizing processing facilities and tolerating environmental costs that Western regulators would not permit.

The result is that China now controls not just over 60 percent of global mining output but closer to 90 percent of refining and separation capacity, and an even higher share of the permanent magnet manufacturing that converts processed rare earths into defense-ready components.

The United States, as the U.S. Geological Survey documented in its 2025 Minerals Commodity Summary, imported 80 percent of the rare earth elements it consumed in 2024. The leading source was China, directly or indirectly accounting for the vast majority of supply. Materials nominally originating in Malaysia, Japan, and Estonia were in almost all cases derived from Chinese mineral concentrates, processed under Chinese industrial systems, before being reshipped to American buyers.

“The supply of certain export-controlled compounds and metals remains a concern as we enter 2026, as recent export data show volumes remain below historical levels.” — Andrew David, Silverado Policy Accelerator

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The confrontation has been building since April 2025, when Beijing imposed export licensing requirements on seven heavy rare earth elements, including dysprosium, terbium, and yttrium. The announcement was calibrated for maximum impact.

It coincided with President Trump’s sweeping tariff announcement, which he called Liberation Day, and it targeted the precise materials most critical to high-performance defense magnets. Chinese officials described the restrictions as a national security measure. American officials described it as a shot across the bow.

A partial easing of restrictions came in July 2025, secured after intensive diplomatic pressure. It did not last. By early 2026, China had reimposed tough dual-use controls targeting Japan, which serves as a key processing partner for American defense manufacturers.

Export volumes of the controlled compounds fell sharply below their historical averages. In practice, according to customs data reviewed by the South China Morning Post, shipments of controlled materials to the United States rarely arrived in meaningful quantities even during the nominal detente.

The pattern alarmed analysts who track the supply chain closely. David Merriman, research director at Project Blue Metals, told S&P Global Platts that the ex-China market will face bottlenecks in the supply of heavy rare earth products through at least 2027, as alternative suppliers are constructed and commissioned. Key elements facing disruption, he said, include yttrium, lutetium, terbium and dysprosium.

What makes this particularly dangerous is structural rather than tactical. Minerals like gallium, tellurium, tungsten, and germanium, largely under Chinese supply chain control, appear in more than three-quarters of American weapon systems. A sustained Chinese cutoff would not simply slow production. It could stop it.

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The Trump administration has responded with a mix of genuine investment and notable urgency. On February 3, 2026, the White House unveiled Project Vault, a $12 billion initiative to establish the first strategic critical minerals reserve for private industry, combining $2 billion in private capital with a $10 billion loan from the Export-Import Bank. Trump framed it in the bluntest terms possible: American businesses, he said, have been risking running out of critical minerals during market disruptions for years.

The announcement sent mining stocks sharply higher. USA Rare Earth rose 11 percent on the day. MP Materials, which operates the Mountain Pass mine in California, gained 4 percent.

The Pentagon had earlier acquired a $500 million stake in MP Materials and extended it a $150 million loan to expand heavy rare earth separation capacity, with a price floor guaranteed for its neodymium-praseodymium oxide output.

But the timeline attached to these investments is unforgiving. USA Rare Earth does not expect commercial production to begin until 2028. The MP Materials magnet facility in Texas is still ramping up.

A congressionally mandated ban on Chinese rare earth magnets in American military platforms takes effect January 1, 2027, a deadline that industry analysts widely consider impossible to meet without waivers. The Atlantic Council’s November 2025 stress test of US critical mineral supply chains concluded bluntly that the United States and its partners will not be competitive as suppliers on the world market in the near term.

“As long as China continues its saber-rattling regarding dual use and export restrictions, this will serve to impede trade flows and elevate prices.” — Chris Berry, House Mountain Partners

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Into this gap, Africa has stepped with a particular kind of leverage: the leverage of geology. The continent holds approximately 30 percent of known global critical mineral reserves. Three countries have emerged as the most significant candidates to reshape the supply chain that Washington is so desperate to rebuild.

The Democratic Republic of Congo is already a minerals superpower. It holds between 50 and 70 percent of the world’s cobalt reserves, vast copper deposits that supply global electric vehicle supply chains, and at least 60 percent of global coltan. Peer-reviewed research published in Frontiers in Environmental Science confirmed rare earth element occurrences in carbonatite complexes at Bingo, Lueshe, Kirumba, Numbi, and other sites across the country’s mineral-rich eastern and central provinces.

For years, Washington largely ceded the Congo’s mining sector to Chinese state-owned enterprises, which acquired assets whenever Western companies divested. The Trump administration has moved to reverse that calculation.

A new US-Congo Strategic Partnership Agreement now anchors a minerals-for-security framework. In February 2026, American officials witnessed the signing of a memorandum of understanding between Glencore and the US-backed Orion Critical Mineral Consortium for potential acquisition of Congolese mining assets. The deal reflects a straightforward bargain: the Congo gets security cooperation in its conflict-wracked eastern provinces; the United States gets preferred access to the minerals underneath them.

The eastern provinces of North Kivu and South Kivu have been destabilized by the Rwanda-backed M23 militia, which captured the city of Goma in early 2025. Governance risks are substantial.

Infrastructure presents perhaps an even greater obstacle: only 5 percent of Congolese roads are paved, and national electrification stands at 21 percent. The United States has committed $560 million toward the Lobito rail corridor, linking the mineral belt to Atlantic export terminals, but railroads do not get built in months.

South Africa offers a more developed platform but a more complicated political relationship. The Phalaborwa complex in Limpopo province, one of the world’s largest carbonatite deposits, was expected to produce roughly 1,900 tonnes per year of rare earth concentrate, a meaningful contribution to non-Chinese supply chains.

That plan has hit serious turbulence. The project is under threat after a United States executive order paused foreign aid in the context of bilateral tensions over South Africa’s land reform policies and its International Court of Justice case against Israel. The gap between geological promise and diplomatic reality has rarely been so visible.

Then there is Botswana, which in late February 2026 produced news that stopped the rare earths market cold. The Canadian exploration company Tsodilo Resources announced that early drilling at its Gcwihaba Metals project in the country’s northwest had confirmed the presence of all 15 rare earth elements listed on the USGS’s 2025 Critical Minerals List, along with copper, cobalt, nickel, vanadium, and silver.

The deposits were identified at a depth of just 20 to 50 meters below the surface, a figure that matters enormously: shallow mineralization means lower extraction costs and a faster path to commercial production than the deep deposits that define most competing projects.

Botswana’s response to the discovery has been studied and deliberate. President Duma Gideon Boko reportedly declined an invitation to the White House, signaling that his government intends to negotiate from a position of confidence rather than need. Botswana has a template for this.

The country famously secured a 15 percent stake in De Beers as a condition for access to its diamond fields, a deal that became a model for resource nationalism done right. Officials in Gaborone have indicated they are prepared to apply the same logic to rare earths: access is available, but the terms must reflect Botswana’s sovereign interests rather than Washington’s procurement urgency.

“The door is open. Just walk through it from the right direction.” — The Habari Network, on Botswana’s mineral sovereignty posture

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The competition for Africa’s minerals is structurally asymmetric. China’s engagement on the continent is state-driven, backed by sovereign credit from Chinese development banks, operated by state-owned enterprises with minimal environmental, social, and governance constraints, and supported by decades of relationship-building through Belt and Road infrastructure. In 2023 alone, Chinese copper-related projects in the DRC were worth more than $2 billion. Chinese investment in Botswana approached the same figure.

The United States, by contrast, has historically relied on market-driven approaches and private capital, conditioned on ESG requirements that Chinese competitors simply bypass. Whether that model can move fast enough to matter is the central strategic question of the next decade.

Jack Hidary, the chief executive of SandboxAQ, an Alphabet spin-off working on quantum computing and AI-accelerated materials science, has argued that artificial intelligence could cut the time required to secure critical materials to a few years, bypassing the traditional 10 to 20 years needed to bring a new mine online. That is a hopeful projection.

The more conventional view, shared by the Chicago Council on Global Affairs and the Atlantic Council and most supply chain analysts who track this field, is that the United States will not be competitive as a rare earth supplier in the near term and must focus its energy on building the processing and magnet manufacturing capacity that converts ore into defense-ready materials, preferably in partnership with allies who have the geological endowment and the political will to deliver.

The DRC has the endowment. Botswana has the will. South Africa has the infrastructure, if the diplomacy can be repaired. None of the three can solve Washington’s problem in two months. But two months, in this context, is not the real timeframe. It is the alarm.

The actual deadline is the one no intelligence briefing has yet put a number on: the point at which American military power becomes constrained not by the willingness to fight but by the availability of the metals that make fighting possible.

That deadline is not abstract. It is already on the calendar.

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