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Simultaneous wars in Ukraine and Iran have depleted sources of tungsten, a largely obscure metal that is critical to munitions and industrial production.

Breaking Defense

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How long will it take to replenish the US military’s munitions stockpiles?

This week on The Break Out, we look at how long it might take to restock thousands of US munitions used against Iran.

Hegseth disputes claim Iran war delayed Taiwan arms sale

Defense Secretary Pete Hegseth on Saturday pushed back against a statement from a U.S. military official that the Iran war has delayed a $14 billion arms sale to Taiwan. Acting Navy Secretary Hung Cao told senators last week that the U.S. was holding off on the deal in order to preserve America’s dwindling munitions stockpiles. ...

U.S. will need years to replenish stockpiles of advanced weapons used in Iran war, new analysis finds

"The United States has enough munitions for any plausible scenario in the Iran war, but the depleted inventories have created a window of vulnerability for a potential Western Pacific conflict," the Center for Strategic and International Studies said in its new report, provided to The Associated Press. "The time needed to rebuild those inventories has thus become a major concern."

Breaking Defense

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HASC $1.15T defense policy bill takes aim at industrial base challenges

The bill authorizes multiyear procurement of critical munitions, the F-35 and the Arleigh Burke destroyer.

The Hill

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Navy chief undercuts Trump and Hegseth on Taiwan, Iran

Acting Navy Secretary Hung Cao’s insistence this week that the Pentagon had paused a $14 billion arms sale to Taiwan over a munitions review has undercut the Trump administration’s narrative on both Iran and Taipei. Cao on Thursday told Senate appropriators that while the U.S. has “plenty” of missiles and interceptors, the Trump administration is holding off...

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Loitering munitions, launched effects had strong presence at SOF Week 2026

“The [Rogue 1] Block 2 upgrade leverages user feedback to greatly enhance performance, resilience, and operational capability, all while maintaining existing form-factor,” a Teledyne FLIR statement read.

Breaking Defense

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Lockheed breaks ground on new THAAD interceptor plant

“These aren’t just ideas or papers going back and forth,” Lockheed CEO Jim Taiclet said of the Pentagon’s munitions ramp. “We know it’s going to be good, and we know it’s going to happen.”

The Navy Needs Precise Mass and Here Is How to Get There

Maintaining deterrence in the Indo-Pacific and around the world requires the U.S. Navy to change what it builds and how it fights. Sen. Roger Wicker observed in 2024 that the United States’ approach to fleet design and ship construction is “too small and too old.” The current model of naval power cannot scale at the speed modern war demands. The war with Iran is already exposing the limits. High-end ships are being consumed in sustained operations, munitions inventories are thinning, and replacement timelines for exquisite weapons stretch into years. Against a more capable adversary, such as China, those constraints would The post The Navy Needs Precise Mass and Here Is How to Get There appeared first on War on the Rocks.

Ukraine’s Homegrown Glide Bomb Breaks Cover

Ukraine is in urgent need of additional air-launched standoff munitions, especially ones free of foreign supply chains and use restrictions. The post Ukraine’s Homegrown Glide Bomb Breaks Cover appeared first on The War Zone.

The Pentagon Needs a Playbook for Munitions Surge Production

The Tomahawk Land Attack Missiles the U.S. military fired during Operation Epic Fury take months to put on contract and years to produce.Whether driven by U.S. military operations or support to partners, the challenge of quickly replenishing U.S. munitions is not new. Exquisite munitions often take an exquisite amount of time to manufacture and deliver. Defense officials, in turn, frequently want to compress that time as much as possible, seeking to restock fast and mitigate future risks.The Russo-Ukrainian War has illuminated the challenge of accomplishing this feat. It also offers lessons for how the U.S can accelerate munitions production timelines The post The Pentagon Needs a Playbook for Munitions Surge Production appeared first on War on the Rocks.

How Much Longer Can Russia Last in the War?

In 2025, Collin Meisel and Mathew Burrows wrote, “Russia Can Afford to Take a Beating in Ukraine,” where they argued Russia was able to absorb the blows Ukraine was delivering and could continue fighting for a while. A year later, we asked Collin and Mathew to revisit their assessments.Image: The Kremlin via Wikimedia CommonsIn your 2025 article, you argued that due to its sheer size — in service-capable population, economy, and munitions production capacity — Russia can absorb more of a hit throughout this war than Ukraine can. After another year of combat, Ukrainian defense innovation, and even more Russian The post How Much Longer Can Russia Last in the War? appeared first on War on the Rocks.

From Slogan to Standard: How the Pentagon Should Define Affordable Mass

The term “affordable mass” entered public defense discourse in 2021 as a munitions concept, which the Air Force adopted in 2023 to describe its effort to field large numbers of lower-cost, semi-autonomous aircraft to complement crewed fighters. The term has since spread in defense reporting, think-tank commentary, service initiatives, and even on War on the Rocks.The Air Force, Army, and Navy are all pursuing low-cost, high-volume buying efforts to augment the force of the “few and exquisite” with the “affordable and plentiful,” and the Pentagon is requesting $54 billion to dramatically expand autonomous drone warfare efforts. The Air Force calls The post From Slogan to Standard: How the Pentagon Should Define Affordable Mass appeared first on War on the Rocks.

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