Today's Defense Pulse
Updated 20m ago
U.S. Navy launches Hormuz blockade as Iran imposes tolls and mines
President Trump ordered a U.S. Navy blockade of the Strait of Hormuz effective April 13, targeting any vessel entering or leaving Iranian ports. Iran responded with a de‑facto toll‑booth regime charging up to $2 million per ship and laying partially undetected mines, heightening oil‑market volatility with Brent crude above $120 a barrel.
Also developing:
By the numbers: Sierra Space raises $550M in private funding
How Governments Buy Commercial Earth Observation Data
Governments are increasingly integrating commercial Earth observation (EO) data into their core operations, moving beyond one‑off pilots to repeatable contracts. Agencies such as NOAA and NASA now procure raw imagery, processed analytics, and managed services to fill mission gaps in weather forecasting, disaster response, and environmental monitoring. Licensing, data rights, and operational trust have become decisive factors, often outweighing pure sensor performance. This shift creates a stable market for private EO providers while allowing public entities to maintain a hybrid observation architecture that blends sovereign satellites with commercial capabilities.
US 5th Fleet Shifts to Defend Strait, Countering Iran
So, this is a really well thought out operation by @CENTCOM. The US could not free up aerial and naval forces for clearing the Strait during offensive operations against Iran. With the ceasefire in place, @US5thFleet could divert resources and assets to...
U.S. Air Force Expands KC-135 Stratotanker Fleet at Eielson to Boost Arctic Refueling Power
The Alaska Air National Guard’s 168th Wing received four additional KC‑135 Stratotankers at Eielson Air Force Base, raising its fleet to twelve aircraft. As the sole Arctic‑region air refueling unit, the wing now can generate more sorties and sustain operations...
Carns Warns UK Must Adapt Faster or Risk Future War
Armed Forces Minister Alistair Carns warned at the London Defence Conference that the United Kingdom must accelerate its adaptation to modern warfare or risk heightened conflict risk. He highlighted Ukraine’s experience, noting that cheap, mass‑produced drones now drive the majority...
When Sovereign Buildings Become Targets: The Nabatieh Strike and What It Signals for Regional Escalation
Israel’s airstrike on a State Security building in Nabatieh, southern Lebanon, killed several government personnel and civilians, marking a stark departure from targeting Hezbollah sites. The attack sparked nationwide funerals and unified Lebanon’s fragmented political factions in condemnation. Analysts argue...
U.S. Navy Destroyers Transit Strait of Hormuz
On April 11, the U.S. Navy deployed the guided‑missile destroyers USS Frank E. Peterson and USS Michael Murphy through the Strait of Hormuz to initiate a mine‑clearance operation against ordnance laid by Iran’s Islamic Revolutionary Guard Corps. The transits occurred...
Metal Shark Completes U.S. Navy Patrol Boat Program
Metal Shark announced the completion of the U.S. Navy’s 40-foot Patrol Boat Flight 1 program, delivering a total of 57 vessels after a contract awarded in 2017. The effort included two first‑article prototypes, full‑rate production authorized in 2020 for more than...
Fire Catches Russia’s only Su-57 Production Plant in Komsomolsk-on-Amur
A fire erupted in Shop 46 of the Komsomolsk‑on‑Amur Aviation Plant, Russia’s sole serial producer of the Su‑57 fifth‑generation fighter. The workshop fabricates roughly 300 polymer‑composite components, including about 100 large‑format structural panels critical to the aircraft’s airframe. With only 20‑25...
Small Models Also Found the Vulnerabilities that Mythos Found
Researchers tested a suite of inexpensive, open‑weight language models on the same code snippets Anthropic highlighted for its Mythos system. All eight small models flagged Mythos's flagship FreeBSD exploit, including a 3.6 billion‑parameter model that costs roughly $0.11 per million tokens....
Nuclear Power Advocates Fuel Proliferation, Not Solutions
In this 2010 TED talk, I highlighted the risk of nuclear weapons proliferation due to the spread of nuclear energy https://www.ted.com/talks/stewart_brand_mark_z_jacobson_debate_does_the_world_need_nuclear_energy The response was denial, obfuscation, and attacks. Yet, the cause of the war with Iran today is to prevent them from obtaining...
Orthodox Easter Ceasefire Falters as Ukraine Says Russia Continues Drone Strikes
Russia declared a 32‑hour Orthodox Easter cease‑fire on Saturday, but Ukrainian officials say Russian drones continued striking positions at the junction of Donetsk, Dnipropetrovsk and Zaporizhzhia. The Ukrainian Air Force reported shooting down 133 of 160 drones, yet two civilians...
Rare‑Earth Funding Surge Raises Specter of 2030s Glut
Governments and private investors are committing billions of dollars to rare‑earth mining and processing projects outside China, aiming to secure supply chains for defense and clean‑tech. Analysts warn that the rapid build‑out, especially in U.S. magnet capacity, could outpace demand...
Draganfly Ramps up DPRO Line to High‑volume Defense Drone Manufacturing
Draganfly Inc. is converting its DPRO drone line from low‑volume prototyping to high‑volume, aerospace‑grade manufacturing, adding AS9100 and ISO9001‑certified facilities in Texas and Canada. The move aims to meet expanding U.S. Army and Special Operations orders and signals a broader...
US Naval Showdown with Iran in Strait of Hormuz
During ongoing Islamabad talks, the United States Navy sent multiple warships through the Strait of Hormuz without Tehran’s coordination, marking the first such unapproved transit since the conflict began. Two vessels successfully exited while a third reversed course after Iran...
DARPA Grants $5.2 Million to Avalanche Energy for Space Radioactive Batteries
DARPA has awarded Avalanche Energy a $5.2 million contract under its Rads to Watts program to build a lightweight radioactive battery capable of powering a laptop‑class system for months. The effort targets higher‑density, resilient power sources for defense‑grade satellites and other...
AI Drones Make Mine Clearing Faster and Safer
Britain’s Defence Science and Technology Laboratory, together with the British Army’s 33 Engineer Regiment, completed a multi‑week test of AI‑powered quadcopter drones in Essex to locate and classify land‑mines and unexploded ordnance. The drones combine optical, thermal, infrared and magnetometer...
Trump Hires Orbital Towing Company to Build Space Interceptors
Donald Trump’s team has selected Impulse Space, a fledgling orbital‑tug firm founded by former SpaceX engineer Tom Mueller, to build the orbital layer of his “Golden Dome” missile‑defense concept. The contract pairs Impulse with Anduril Industries and a Pentagon prototype...
As Lebanon, Israel Negotiations Begin Hezbollah Hardens It Line
Lebanon’s government is pursuing direct talks with Israel to halt the six‑year conflict that has devastated its economy and infrastructure. Hezbollah’s secretary‑general, Sheikh Naim Qassem, publicly rejected any diplomatic solution, insisting the “resistance” will continue until the last breath. The...
SPARTA Countermeasures: The Complete Guide to Defending Spacecraft From Cyber and Counterspace Threats
The Aerospace Corporation’s SPARTA Countermeasures guide (v3.2) presents a comprehensive, eight‑layer defense‑in‑depth framework for protecting spacecraft against cyber and counter‑space threats. It catalogs 90 specific countermeasures, aligns each with NIST SP 800‑53, ISO 27001, NASA best practices and MITRE D3FEND, and introduces...
The World's First Warship Dubbed A 'Super Carrier' Wasn't Made By The US
The term “super carrier” first appeared in the late 1930s, applied to Britain’s HMS Ark Royal (91) after a New York Times comparison with Germany’s Wilhelm Gustloff cruise liner. Ark Royal entered service in 1938, displaced about 22,000 tons, and could carry roughly 70 aircraft, making it...
Q&A: ‘If You Are in the Business of Peace, You Must Talk to Those Who Are at War’
Argentina has officially nominated IAEA Director General Rafael Grossi to succeed António Guterres as UN secretary‑general for the 2027‑2031 term. Over the past six years Grossi has overseen IAEA inspections in Iran, brokered six cease‑fire agreements at the Zaporizhzhia nuclear plant, and...
Ukraine and Russia Swap 175 War Prisoners as Easter Ceasefire Starts
Ukraine and Russia each released 175 prisoners of war in a coordinated swap that began with a 32‑hour Easter cease‑fire. The exchange included soldiers from multiple fronts—Mariupol, Donetsk, Kharkiv and Zaporizhzhia—and seven civilians, many of whom had been detained since...
Bloomberg This Weekend: US-Iran Talks in Pakistan (Podcast)
The United States launched a diplomatic push in Islamabad on April 11, 2026, sending Vice President JD Vance, special envoy Steve Witkoff and Jared Kushner to discuss ending the six‑week Middle‑East conflict with Iran. Iran’s Fars agency confirmed talks had begun, though it did not...
Resecurity Recognized as 2026 Cyber 150 Winner for Full-Spectrum Cyber Threat Intelligence and Digital Protection
Resecurity, a Los Angeles‑based cyber intelligence firm, has been named a 2026 Cyber 150 Winner, recognizing its innovative full‑spectrum threat‑intelligence and digital protection offerings. The award highlights the company’s AI‑powered platform that serves Fortune 100 enterprises and U.S. government agencies. Resecurity delivers...
A Military Perspective...
John Ellis’s Substack post offers a military‑focused analysis of the widening conflict across the Middle East, tracing how hostilities have spilled from Syria into Iraq, Lebanon, and Yemen. He outlines the growing role of Iran‑aligned militias and the potential for...
Time to Give the Trump-Putin-Orban Axis a Slap in the Face
Hungary’s April 12 parliamentary election pits long‑time premier Viktor Orban against challenger Peter Magyar, with the outcome poised to affect both the EU’s internal cohesion and Ukraine’s war effort. The article highlights that the United States and Russia, represented by Donald Trump and Vladimir Putin,...
After F-35 “Stealth Shock” & Multiple F-15E Losses in Iran War, U.S. Seeks OMEN to Boost Aircrew Awareness
The United States has lost eight aircraft—including the first ever F‑35 stealth jet shot down—within a month of the Iran conflict, with additional drones and transport planes destroyed or damaged. A post‑mortem identified a missing in‑flight common operating picture (COP)...
CISA Webinar 4/28: ISC Facility Security Committee Seminar – Regions 5 & 7
The Cybersecurity and Infrastructure Security Agency (CISA) and the Interagency Security Committee (ISC) are holding a Facility Security Committee (FSC) seminar on April 28 for Regions 5 and 7. The virtual event will walk participants through FSC procedures, recent updates to the Risk...
Grant Predicted War as America's Suez Moment
Grant and @LukeGromen give a serious unbiased analysis here. I need to say this, as I did on GOG. Grant is the man. 5 years ago he wrote a piece on the new era of warfare. Prescient to the max....
U.S. Navy Ships Crossed Strait of Hormuz on Saturday, Axios Says
On Saturday, U.S. Navy ships attempted to cross the Strait of Hormuz, the first such movement since the conflict began. Axios reported the transit was uncoordinated with Iran, while an intelligence source said two Arleigh Burke‑class destroyers were forced to...
Rubio Revokes Green Cards of Iranian Regime Affiliates
Secretary Rubio Terminates Green Cards of Foreign Nationals Tied to Infamous Iranian Regime Propagandist @SecRubio Fully support. https://t.co/w6zD05w5Uj Eissa Hashemi is the son of Masoumeh Ebtekar, also known as “Screaming Mary,” the infamous spokeswoman for the Islamist militants who stormed the U.S. Embassy...
Public API Keys Misused as Live Gemini AI Credentials
Developers’ public API keys now function as live Gemini AI credentials, enabling attackers to run costly and unauthorized operations. https://t.co/Oo1InL5G8f
Weekend Dispatch...
{"summary":"The post highlights a recent U.S. military airstrike that destroyed a bridge near Tehran, using vivid imagery and brief commentary to underscore escalating tensions between the United States and Iran. It frames the event as a rare but significant development,...
US‑Iran Talks Set for Pakistan Tonight or Tomorrow
Another round of negotiations between the US and Iran will be held tonight or tomorrow in Pakistan, per Iranian state affiliated media.
Pentagon Launches Mine‑Clearance Mission in Strait of Hormuz
Pentagon says it has started a mining clearance mission in the Strait of Hormuz. “Two U.S. Navy guided-missile destroyers conducted operations,” it said
When In Pakistan…
A U.S. delegation headed by Senate candidate JD Vance met a 71‑person Iranian convoy in Pakistan, led by Bagher Ghalibaf, Iran’s parliament speaker and IRGC brigadier general. The encounter, staged on Pakistani soil, marked a rare direct engagement between senior...
Naval Cuts Expose Dangerous Mismanagement During Critical Need
it’s obvious that we are gutting our naval capabilities..at a time when they are most required..this video illustrates the extent of that mismanagement https://t.co/Xi3RzEoZEl I’m pretty sure this is not good practice
US Warships Transit Strait of Hormuz, Enter Persian Gulf
It looks like USS Michael Murphy and Frank Peterson did sail the Strait of Hormuz into the Persian Gulf and back out. https://t.co/1gEm6RBZGa
Wars Make Or Break Presidencies
President Donald Trump escalated U.S. military action against Iran, first ordering a strike on the country’s nuclear program in June 2025 and then launching air and missile attacks on Iranian political and military targets in March 2026. The campaign aims to degrade...
New Safe Maritime Passage to Boost Global Trade
“Today, we began the process of establishing a new passage and we will share this safe pathway with the maritime industry soon to encourage the free flow of commerce,” said Adm. Brad Cooper, commander of @CENTCOM
Iran's Strait Actions Signal Rising Future Costs
If Iran is tolling the Strait and taking on Chinese weapons, the job is not done and must be finished. The price might be high now—but it will only be higher later.
Trump Says US Forces Are 'Clearing' Strait of Hormuz
President Donald Trump posted that U.S. forces have begun clearing the Strait of Hormuz, asserting that all 28 Iranian mine‑dropping boats have been sunk. He reiterated claims that American actions have crippled Iran’s navy, air force, ballistic‑missile and nuclear programs....
AI Cuts BEC Dwell Time From Days to Minutes
Business email compromise dwell time: 24 days to 24 minutes. That is AI-powered incident response working. 85% of organizations still run manual security. Attackers move in 72 minutes. The math does not work.
Soviet Arms, Not Ukrainian, Prompt Threat Over Budapest Deal
They weren’t Ukrainian weapons, they were USSR weapons. And it was YOU who threatened to revisit Budapest agreements at the Munich security conference. Time to go, pal.
Can Trump End the Iran War in 3 Weeks Before November?
Former White House chief of staff Mick Mulvaney, retired Air Force General John Tyger, and the author debated whether President Trump can realistically end a potential Iran war within a 2‑3‑week window before the November election. The discussion examined the...
IMF Graph Misstates 1960s Defense Spending Share
Unless I am seeing things, there is something wrong with this graph in @IMFNews WEO Chp2 2026. World defense spending did no halve as a share of global gdp in the mid 1960s! Can anyone explain. Ive checked...
US Warships Enter Hormuz, Raising Iran Tension Concerns
US warships just crossed Hormuz. Earth to Trump: WTF? Are you ending negotiations with Iran? Are you claiming Hormuz? Planning to occupy Iran? I know a plan is a lot to ask. #Hormuz #Geopolitics #OilMarkets https://t.co/EQxOGT4dzM
Buffets, Baristas, but No Briefings: Journalists Frozen Out of Iran Talks
Hundreds of journalists gathered at Islamabad’s Jinnah Convention Centre for the high‑profile US‑Iran talks, only to be relegated to a coffee‑served media hub while negotiations unfolded behind closed doors. The event was steeped in branding – from a “Brewed for...
Indian Forces Thwart Terror Plot, Defuse 14.5 Kg IED
"Indian Army and J&K Police avert major terror attack by neutralizing 14.5 kg IED in Shopian" https://t.co/FSXBrIcVWK
Israeli Airstrike Ravages Jibchit Amid Unchecked Campaign
Israel’s campaign in Lebanon continues UNABATED. Today, an Israeli airstrike caused MASSIVE destruction in the region of Jibchit, Lebanon. https://t.co/TpGNFGXVh3
