Today's Defense Pulse

UK MOD issues new RA 5219 rules for flight‑test instrumentation and data recorders
Regulatory Article 5219 now mandates specific sensors, recorder capacities, data‑retention periods and compliance procedures for UK military air‑system flight trials. The latest Issue 8 revision was released on 29 May 2026, replacing earlier versions dating back to 2014. The rule applies to all future flight‑test programs of air platforms.
Also developing:
By the numbers: Disciplined Growth Acquisition Corp raises $150M in IPO

China’s Global Port Push Reveals Supply Chain Security Goals
A new AidData report shows China granted or loaned $23.9 billion to finance 168 ports across 90 countries between 2000 and 2025. The investments, covering construction, expansion and equipment, often sit near Chinese‑financed mines and have hosted naval visits at more than half the sites. While 54% of the funding went to low‑ and middle‑income nations, Australia alone received $4.5 billion for seven ports, and the study finds no clear debt‑trap pattern. Researchers argue the network secures supply chains for commodities and offers strategic maritime independence, raising geopolitical concerns about potential naval basing.

Trump’s War Alliance With Israel Is Reshaping the Middle East. But It Carries Risks.
President Trump has become the first U.S. leader to commit the United States to a full‑scale joint war with Israel, deploying coordinated air operations and shared intelligence. The partnership creates a combined force with unprecedented technological firepower, marking a stark...

IMetalX Emerges From Stealth with Technology to Model Resident Space Objects
iMetalX Inc. has emerged from stealth to announce a partnership with Psionic, integrating Psionic’s Space Navigation Doppler Lidar with iMetalX’s Asgard data‑simulation platform. The combined solution can generate high‑fidelity 3‑D models of resident space objects within minutes, aimed at autonomous...

Iran War Costs $2 B Daily, Claiming American Lives
This war with Iran is already costing nearly $2B a day and is continuing to take more American lives. Find my take on Iran in my latest substack, “This Time Is Different”: https://bit.ly/SimplyPutSubstack
Canada’s New Arctic Strategy Mirrors Past Promises
Canada Launches New Arctic Strategy That Looks A Lot Like the Old One Prof Rob Huebert, @UCalgary, says Trudeau and Harper promised many of the same things MarkJCarney is now promising. Who will deliver? #cdnpoli https://youtu.be/gGxKucgI0Rc

U.S. Vows to Block Iran’s Attempt to Shut Down Strait of Hormuz
The United States announced it will actively prevent Iran from closing the Strait of Hormuz, a vital artery for global oil shipments. Defense Secretary Pete Hegseth downplayed the disruption but affirmed U.S. readiness, while the Trump administration lifted select sanctions...

Microsoft: Windows 11 Users Can't Access C: Drive on some Samsung PCs
Microsoft is investigating a Windows 11 issue on Samsung laptops after the February 2026 security updates, where users lose access to the C:\ drive and cannot launch key applications. The error, “C:\ is not accessible – Access denied,” affects Galaxy Book 4 and...

Navy Adjusts Rollout of Enterprise Safety Reporting System After Shutdown Delays
The U.S. Navy is re‑sequencing its rollout of the Risk Management Information (RMI) system after a 42‑day federal shutdown delayed development and data migration. A phased implementation will span from January through May, beginning with modules that require no historical...

Anthropic’s Forced Removal From the U.S. Government Is Threatening Critical AI Nuclear Safety Research
Anthropic’s Claude is being pulled from U.S. federal use after President Trump’s direct order, halting a partnership that helped the National Nuclear Security Administration evaluate AI‑driven nuclear and radiological risks. The move threatens ongoing projects at the Department of Energy’s...

Tech Bills of the Week: Improved Biological Data for Research; Section 702 Reform; and More
Congress introduced a suite of bipartisan bills aimed at shaping America’s AI future. The AI‑Ready Bio‑Data Standards Act directs NIST to create standards for biological datasets used in machine‑learning research, while the Government Surveillance Reform Act tightens warrant requirements for...

Air Force Triples AEHF Terminal Contract Ceiling to Nearly $3 Billion
RTX Corporation secured a $2.01 billion ceiling increase on its Advanced Extremely High Frequency (AEHF) terminal contract, lifting the total value to $2.97 billion—more than triple the original $960 million award. The indefinite‑delivery, indefinite‑quantity modification covers production, sustainment and support of all three...
Pentagon Policy Reforms Boost Innovation Base, Report Finds
The Ronald Reagan Institute’s National Security Innovation Base Report Card shows the Pentagon’s acquisition reform is gaining traction, lifting the unified technology enterprise grade to B‑ from D+. However, the defense modernization indicator remains stuck at a D, with program...

Could Iran Actually Win the War?
Anthony Davis argues that the prevailing U.S. narrative of a swift, decisive victory over Iran masks a more complex reality. He contends that Iran’s asymmetric tactics, extensive proxy networks, and resilient domestic economy could allow it to achieve strategic objectives...

US Warned of China Rare Earth Curbs if Section 301 Tariffs Expand
The U.S. Trade Representative announced Section 301 investigations into 16 countries, including China, and separate probes into 60 economies over forced‑labor concerns. In response, Chinese officials warned they could reinstate rare‑earth export restrictions and halt soybean purchases if Washington proceeds with...

Six U.S. Troops Killed in Aircraft Crash in Iraq
Six U.S. service members died when a KC-135 refueling aircraft crashed in western Iraq, with investigators suspecting a mid‑air collision rather than hostile fire. The loss marks the fourth manned U.S. aircraft accident since Operation Epic Fury began, bringing the...
Americans Reject Ground Troops in Any Iran War
americans do not want—and did not vote for—boots on the ground in a war with iran.

My Two Week Assessment Of War With Iran
Two weeks into the United States‑Iran conflict, commentator Matt Lieberman argues the war will likely conclude within the administration’s original four‑to‑eight‑week window. He bases this forecast on political dynamics rather than a formal military analysis, emphasizing the influence of domestic...

Space Race in the 21st Century: Assessing China’s Challenge to American Leadership
SCSP’s new report highlights China’s transformation from a missile‑focused program into a full‑scale civil, commercial, and military space enterprise. Beijing now runs the Tiangong space station, operates global navigation and Earth‑observation constellations, and has achieved historic lunar and Mars robotic...
CAVASSHIPS Podcast [Mar 13, ’26] Ep: 234 Deep Dive on Navy’s Mine Countermeasure Capabilities
The CAVASSHIPS podcast episode 234, released March 13, 2026, examined the U.S. Navy’s mine‑countermeasure (MCM) posture amid rising concerns that Iran could lay sea mines in the Strait of Hormuz. Hosts Christopher Cavas and Chris Servello interviewed retired Rear Admiral...

Simultaneous Fire - Operational Updates on the Israeli Home Front
An Iranian ballistic missile struck a home in Zarzir, injuring over 60 civilians, while Hezbollah launched nearly 200 rockets and 20 UAVs in a coordinated assault on Israel’s north. Israeli early‑warning teams and the IDF quickly intercepted many threats, neutralizing...
US Marines Deploy to Iran; Conflict and Economic Turmoil Persist
two weeks before us marine expeditionary force—some 2,500 marines—now being deployed to iran arrives in the mideast. this war (and global economic disruption) isn’t over soon.

BREAKING: Declassified Evidence Links U.S. Bioweapons Program To Lyme Disease Epidemic
Newly declassified documents reveal that the U.S. CIA and military conducted covert bioweapon experiments involving pathogen‑infected and radioactive ticks in the 1960s. Operations included dropping infected ticks on Cuban sugarcane workers in 1962 and releasing 282,800 radioactive lone‑star ticks across...

Command Change in Ukraine’s 159th Mechanized Brigade
Ukraine’s 159th Mechanized Brigade has appointed Colonel Serhiy Smolyak as its new commander, replacing founding commander Colonel Oleksandr Demchuk, who is reassigned within the Armed Forces. Smolyak, a National Army Academy graduate, has fought in Donbas since 2014, led a...

Jared Keller on Laser Weapons | Meidas Defense
In this episode, host Marine Corps veteran Joe Plunzer talks with defense journalist Jared Keller about the evolution and current state of laser weapons. Keller explains how directed‑energy systems have moved from massive, lab‑bound prototypes to compact, vehicle‑mounted units capable...

For You Lovely Paid Subscribers. Join Me in Drinking What You Drink or Smoking What You Smoke.
The Pentagon has ordered the 31st Marine Expeditionary Unit, about 2,200 Marines, and the USS Tripoli to the Middle East to neutralize Iran’s missile and naval threats to global shipping. The deployment signals a shift from a rapid‑response posture to...

How Iran Blocking the Strait of Hormuz Affects the U.S.
Iran’s recent closure of the Strait of Hormuz has disrupted one of the world’s most critical oil chokepoints, prompting a sharp rise in global crude prices. While the United States sources only a modest fraction of its oil from the...
Romania’s Drone and Energy Plans with Ukraine Make Europe Stronger and More Secure
Romanian President Nicușor Dan and Ukrainian President Volodymyr Zelenskyy signed a Strategic Partnership Declaration in Bucharest, formalizing cooperation on defense, energy, and economic projects. The agreement includes a €200 million joint drone production program and expands Romania’s role as a NATO eastern‑flank...

EXCLUSIVE: Cyprus Acts as a “Third Force” In EU Sanctions Extension Vote
Cyprus, currently holding the EU presidency, has moved from a neutral position to actively opposing the removal of sanctions on Russian billionaire Alisher Usmanov, citing historic disputes with Turkey. The shift follows a letter from Turkish President Recep Erdoğan to Slovak...

Delayed US Naval Escorts Spark Doubts over Hormuz Strategy
It is 5,000 miles from Japan to the Strait of Hormuz. Even if the ships left early and conduct a high transit speed that is 10 to 14 days to get to the scene. If this is going...

Fake PoCs, Misunderstood Risks Cause Cisco SD-WAN Chaos
Cisco disclosed six new SD‑WAN Manager vulnerabilities, with CVE‑2026‑20127 receiving a perfect 10‑score and confirmed zero‑day exploitation for three years. Researchers warn that the focus on this high‑profile bug has eclipsed CVE‑2026‑20133, a 7.5‑score information‑disclosure flaw that can expose admin...

Lawmakers Seek Watchdog Probe Into Former Acting CISA Chief’s Polygraph Failures
A bipartisan group of House lawmakers has asked the Department of Homeland Security and the Office of the Director of National Intelligence inspectors general to investigate former acting CISA director Madhu Gottumukkala’s failure of two counter‑intelligence polygraph examinations and the...
Iran's Real Power: Controlling the Strait of Hormuz
My take on Iran's biggest advantage in the war: "The US & Israel are making mincemeat out of Iran, but Iranians still hold their key card: the Strait of Hormuz, which remains shut down. A great friend in Dubai said he...

After Ukraine, FPV Drones Could Take on Arctic Warfare
First‑person‑view (FPV) drones that proved decisive in Ukraine are now being field‑tested in the Arctic by Norway and the United States during NATO’s Cold Response 2026 exercise. Norway awarded a $9.4 million contract for the American‑made Skydio X10D, equipping its long‑range...
As Iran War Rages, Washington Opens a New Front in Ecuador
Amid the escalating war in Iran, the United States has launched a joint security initiative with Ecuador, providing training, intelligence, and equipment to President Daniel Noboa’s forces. The operation backs Noboa’s aggressive crackdown on protestors and criminal gangs, even as...
Canadian Science Policy Centre: Call for Editorials, March and April 2026 Panels and More
The Canadian Science Policy Centre (CSPC) announced a call for editorials on the government’s new Defence Industrial Strategy, which aims to boost defence‑related R&D spending by roughly 85 % over the next ten years, with submissions due April 15, 2026. Simultaneously, CSPC opened...
US Deploys AI for Warfare, Iran Becomes Test Ground
The US turned to Claude and other artificial intelligence systems to help shape its vision for AI warfare. In Iran that strategy is unfolding in real time An excerpt from the coming book Project Maven shows how the US enlisted...
White House Admits Plan: Bomb Kharg Island Amid Hormuz Closure
OK, I suppose we should admit the White House was right, and, all along, they did have a plan to deal with the closure of the Strait of Hormuz. Bomb Kharg Island.
Trump Claims Indefinite Iran War, Says U.S. Ahead
Trump's timeline for the #Iran war: "As long as is necessary..." "Militarily, we're WAY ahead of schedule..."

Trump Claims He Ordered Strikes on Iran's Oil Hub
Trump says he has directed strikes on Iran's Kharg Island, an oil hub. There has been widespread speculation it could be targeted for strikes, U.S. seizure or both. https://t.co/qO3H1olaiI
Proposed Military Capture of Tunbs Islands for UAE
For the record, I suggested sending troops to capture the Greater and Lesser Tunbs Islands and Abu Musa Island in the Strait of Hormuz and then turn them over to the UAE — on March 5! @ACGlobalEnergy #oil #iran
Iran's Deterrence Strategy: Targeting Regional Energy Infrastructure
My take on Iran’s war strategy in @RFERL: “Iran’s strategy is deterrence. It cannot match US-Israeli firepower, but it can raise the cost of the war. That means retaliatory strikes on energy infrastructure and other economic targets across the region.” https://t.co/w5DylP6XRN

Merz Warns of Endless War without Unified Strategy
German Chancellor Merz on the Israeli-US war against Iran: “What concerns us most is that there is clearly no common plan for bringing this war to a swift and convincing conclusion. We have no interest in an endless war.” MERZ SOUNDS LIKE...

US Maritime Crisis Spurs Bipartisan Push for Lean Dual‑Use Ships
1/ The US maritime base is in crisis A new Whitehouse Maritime Action Plan (MAP) highlights a rare bipartisan truth: rebuilding shipbuilding capacity is natsec priority. the core debate? expensive battleships vs. lean fast dual-use vessels https://t.co/ornn1pqNVC
Analysts Favor Deterrence Over Costly, Unpredictable War
Generally speaking, serious analysts are sober about the cost, unpredictability, and hard-to-anticipate second-order effects of military action, as well as the relatively successful track record of deterrence in mitigating risks from proliferation.

Epic Fury's Iran Air Campaign: Likely Success?
"Does this air campaign have any chance of success?" ED HUNT assesses the strategic goals of #EpicFury against #Iran compared to other conflicts https://t.co/I4gSRmWewx https://t.co/1Pobq86Dk2
FBI Warns of Potential Ship‑launched Armed Drones
Drone Attacks On U.S. From The Sea Are A Known Possibility An FBI alert about the possibility of armed drones launched from a ship reflects real dangers even if the immediate threat is not credible. https://t.co/CbwY1nAmJR
Deploying Marines on a Burning Island Near Iran Is Foolish
"What if we put 2500 Marines on a flammable island really close to Iran? Nothing bad, right?"

Absurd “Shoes vs Boots” Line Exposes Trump’s Rhetoric
“We need shoes on the ground in Iran, not boots on the ground.” Says Trump 1.0 Secretary of Defense It would take me a week to construct a take that dumb. How does he do it? https://t.co/ctsBNu0SbD
Ukraine Bans Export of Shahed Interceptor Drones
Ukrainian Companies Prohibited From Exporting Shahed Interceptor Drones Waves of Iranian Shahed drone attacks across the Middle East have spurred widespread interest in Ukrainian interceptors. https://t.co/HIO47E6I2c

Sensofusion Unveils Portable Drone Factory in Shipping Container
Sensofusion has today announced the Tactical Drone Factory: a fully self-contained interceptor drone manufacturing facility built inside a standard shipping container. Shipping worldwide in May (export restrictions apply). https://t.co/h8FszYdeAo https://t.co/RgZ7xuuGiT