Today's Defense Pulse
Updated 2h ago
U.S. Navy launches full blockade of Iranian ports in the Strait of Hormuz
U.S. Central Command announced an immediate blockade of all vessels traveling to or from Iranian ports, effectively shutting the Strait of Hormuz. The action follows President Biden’s earlier threat of a blanket maritime blockade and comes as Iran imposes a $1‑per‑barrel toll on tankers, which is deemed illegal under international law.
Also developing:
By the numbers: Sierra Space secures $550M private funding round
Emerging Markets Fall 13% in March, 11% Behind Wall Street
International equity indices slumped in March 2026, with the MSCI Emerging Markets index down 13.1% and the MSCI EAFE index down 10.2%, leaving them 11% behind the S&P 500's 5% loss. The divergence was driven by soaring energy prices, a strengthening U.S. dollar, and the outbreak of Operation Epic Fury in the Persian Gulf.
Navy Seeks Fast, Carrier‑Free Trainer Amid F/A‑XX Focus
With all of the focus on F/A-XX, it is worth watching the competition for the next Navy trainer. Especially as the service has shown intention to move quickly (and avoid carrier landings) In the current issue: https://t.co/hNCixl9Kwq
Questioning War: Kim Jong‑Un Already Has Nuclear Weapons
do you want to fight a war to go after Trump's good friend Kim Jung Un in North Korea, who ACTUALLY has nuclear weapons, not just the possibility of making them?
Donald Trump 'Hasn't Read the Psychology of Iranians Well at All', Military Expert Says
Donald Trump announced a unilateral blockade of the Strait of Hormuz on Monday, halting vessels bound for Iranian ports after peace talks collapsed in Islamabad. The move, framed as pressure on Tehran, marks the first time a U.S. president has...
China May Pressure Iran to Reopen Strait Amid Oil Shortage
Assuming Iran has no intention of conceding, and Israel has no contention of conceding, and Trump will claim victory no matter what… what are Vegas odds China will need to pressure Iran to open the strait and if so by...
US Chip Export Controls Fuel Chinese Industry Growth
Sebastian offers a calm and objective assessment of the US chip-export controls on China. While whether the rule is working or not remains a debate in Washington, the consensus among Chinese chipmakers is that US restrictions constitute the single strongest...
What Happened Between OpenAI and Anthropic at the Pentagon?
The video examines the recent shift where OpenAI stepped in to fill a Pentagon AI contract after Anthropic was blacklisted for refusing unrestricted use. Anthropic's refusal to grant the Department of Defense blanket rights—no mass surveillance, no autonomous weapons—prompted the...
House Appropriations Markup Dates Set for FY2027 Bills
Haven't heard anything yet about a NASA FY2027 hearing, but House Appropriations will markup the CJS bill at sbcmte level on April 30 and full cmte on May 13. Sbcmte markup and full cmte markup of the Defense bill are...
Naval Blockade Signals Esc
What the U.S. Naval Blockade Reveals About the War’s Next Phase #energysky -- via Heatmap News https://t.co/FZFt1MufW6 https://t.co/iSVsKYY6SV
LIVE: Donald Trump’s Big Plan For Strait of Hormuz | USS Tripoli Launches Night Ops Near Hormuz|N18G
The U.S. Navy’s amphibious assault ship USS Tripoli (LHA‑7) conducted night operations in the Arabian Sea, launching F‑35B Lightning II jets as part of a large‑scale exercise. About 15 U.S. warships are now stationed near the Strait of Hormuz, a vital artery...
CENTCOM's Strike Forces IRGC to Choose Peace or Retaliation
"They've now seen peace for the last two weeks ... they say, we can build off this, or we can contest and strike back and escalate. This is the best move CENTCOM could have done. The ball is now in...
The UK Just Pulled Support For The US Over Iran
The United Kingdom announced it will not participate in the United States’ newly declared naval blockade of Iranian shipping in the Strait of Hormuz, marking the first overt refusal from a close ally. President Donald Trump has officially activated the...
LIVE: Trump Threatens Iranian Ships as US Naval Blockade Begins | Trump Attacks Pope Leo | N18G
President Donald Trump held a news conference outside the Oval Office, asserting that Iran has reached out for a nuclear deal but remains unwilling to relinquish its program. He announced a U.S. naval blockade in the Strait of Hormuz and...
How AI Swarms Weaponize Disinformation: Can It Be Stopped?
The video examines the emergence of AI swarms—large collections of autonomous agents powered by cheap, high‑performance large language models—that act as a new class of influence weapon. Researchers Daniel Tilo Schroeder and Yonas Kunst explain how these swarms move beyond traditional bot...
China Calls for Restraint Ahead of US Blockade of Iranian Ports | East Asia Tonight (Apr 13)
East Asia Tonight highlighted China’s call for restraint as the United States prepares a full naval blockade of vessels entering or leaving Iranian ports, a move that has reignited Gulf tensions and pushed crude oil above the $100‑a‑barrel threshold. The...
![Coast Guard, SWAT and TSA Conduct Maritime Training in Juneau, Alaska [Image 3 of 10]](/cdn-cgi/image/width=1200,quality=75,format=auto,fit=cover/https://d1ldvf68ux039x.cloudfront.net/thumbs/photos/2604/9612890/250w_q95.jpg)
Coast Guard, SWAT and TSA Conduct Maritime Training in Juneau, Alaska [Image 3 of 10]
On April 8, 2026, the U.S. Coast Guard, Juneau Police Department’s SWAT team, and the Transportation Security Administration conducted a joint maritime active‑shooter drill aboard a passenger vessel in Juneau, Alaska. The exercise simulated a hostile shooter scenario to test coordinated boarding,...
![Coast Guard, SWAT and TSA Conduct Maritime Training in Juneau, Alaska [Image 8 of 10]](/cdn-cgi/image/width=1200,quality=75,format=auto,fit=cover/https://d1ldvf68ux039x.cloudfront.net/thumbs/photos/2604/9612896/250w_q95.jpg)
Coast Guard, SWAT and TSA Conduct Maritime Training in Juneau, Alaska [Image 8 of 10]
On April 8, 2026, the U.S. Coast Guard, Juneau Police Department SWAT team, and the Transportation Security Administration conducted a joint maritime active‑shooter drill aboard a passenger vessel in Juneau, Alaska. The exercise simulated an armed attacker on the ship, testing coordinated...
US Hormuz Blockade, Tariffs Jolt China
China called on the United States and Iran to resume negotiations after Washington launched a naval operation to close the Strait of Hormuz and threatened a 50% tariff on China for allegedly supplying air‑defence systems to Tehran. The U.S. also...
Indonesia’s Board of Peace Dilemma: Prabowo Caught Between Domestic Backlash and US Ties
Indonesia’s President Prabowo Subianto joined the U.S.-initiated Board of Peace (BoP) on 22 January 2026, positioning the nation as a middle power in post‑conflict reconstruction. Domestic opposition surged after three Indonesian peacekeepers were killed in Lebanon amid the US‑Israel‑Iran war, with...
U.S. Military Imposes Blockade on Iranian Ports in Strait of Hormuz
The U.S. Navy activated a full‑scale blockade of every Iranian port and coastal facility along the Strait of Hormuz on Monday, after President Donald Trump warned any ship approaching would be destroyed. The action follows failed peace talks in Islamabad...
Trump Needs A-10s to Go After Iranian Speedboats and Patrol Ships
The Trump administration has imposed a naval blockade of Iran’s ports, allowing only non‑Iranian vessels to transit the Strait of Hormuz. To counter Iran’s 3,000‑4,000 missile‑armed speedboats and 133 patrol ships, officials argue the A‑10 Thunderbolt II is the most suitable...
Iran Threatens Bab Al‑Mandeb If U.S. Blocks Hormuz, Escalating Red Sea Shipping Risk
Iran warned on Sunday that it will expand attacks to the Bab al‑Mandeb strait if Washington proceeds with a naval blockade of the Strait of Hormuz. The threat, issued amid a fragile cease‑fire and U.S. red‑line demands on Iran’s nuclear...
