Every published Top AI Stories item tagged with National Security & Defense, newest first.
The US Army reimposed limits on generative-AI use after soldiers exhausted a shared annual pool of AI tokens within weeks. The Army's technology office announced "unlimited" access in May; by mid-June the pool — 100 million tokens on the Ask Sage platform, which routes to ChatGPT, Gemini, and Llama — was gone, despite a floor of about 200,000 tokens per user each month. Access is restored at capped levels, but officials are unsure the pool will be refilled after October 1. It is an early, concrete lesson in how fast real-world AI demand outruns "unlimited" promises.
German defense-tech company Helsing closed a $1.8 billion Series E round, led by existing backers alongside JPMorgan Chase, General Catalyst, Lightspeed, and Iconiq, valuing the four-year-old firm at $18 billion — the biggest defense-startup raise in European history. Helsing builds AI software and hardware that plug into drones, autonomous jets, and battlefield sensors, and is widely framed as Europe's answer to America's Anduril. Demand ran well past the available allocation as capital keeps flooding into software-defined defense.
South Korea's defense minister announced a plan to train up to 500,000 soldiers as "drone warriors" who would wield drones like personal firearms, with AI-controlled drone swarms slated for a later wave. The military aims to field 11,000 drones by year's end and 60,000 by 2029, deploying first to the demilitarized zone bordering North Korea. The move — a response to escalating Northern weapons tests — drew skepticism, since the 500,000 figure exceeds the country's entire and shrinking active-duty force.
President Trump signed two executive orders aimed at speeding the arrival of useful quantum computers. The first sets a national goal of deploying a "scientifically relevant" quantum machine at a Department of Energy lab by 2028 and backing new quantum sensors and networks. The second pulls the federal deadline for adopting post-quantum cryptography forward from 2035 to December 2031, and directs the National Institute of Standards and Technology to pilot a migration of federal systems by the end of 2027. The orders build on the Commerce Department's recent $2 billion in equity stakes across nine quantum-computing firms.
More than 40 security leaders — including executives from Adobe, Zoom, and Sophos, led by former Facebook security chief Alex Stamos — are urging the Trump administration to reverse last week's order cutting foreign access to Anthropic's Mythos and Fable 5. They argue Mythos is one of the few tools that lets defenders find zero-day flaws faster than attackers, so a broad ban mostly handicaps the people protecting critical systems. Stamos adds that open-weight models are about six months from catching up anyway, so the restrictions buy little real security.
President Trump signed an executive order on June 2 asking AI developers to voluntarily share frontier models with the federal government up to 30 days before public release for national-security and cybersecurity testing. The order explicitly bars any mandatory licensing or pre-clearance regime, and was cut back from an earlier 90-day window after industry objections, including from former White House AI czar David Sacks. It also stands up a voluntary cyber "clearinghouse" coordinated by the US Treasury Department and directs the Justice Department to prioritize AI-assisted hacking cases.
Reuters, citing Bloomberg News, reports that Beijing has widened informal travel restrictions originally placed on senior DeepSeek researchers to AI talent at Alibaba and other private firms — requiring some professionals to seek official approval before traveling abroad, with the policy framed around state-secret concerns and strategically important AI work. The move treats AI researchers themselves as restricted assets, a national-security frame that mirrors the logic the US has used in reverse for chip export controls. The pattern hardens a two-way decoupling at the human-capital layer rather than just the supply chain.
CNN's deeper read on Thursday's seven-vendor Pentagon AI procurement deal explains why Anthropic was the only frontier lab kept out: the company refused contract language allowing Claude use for "all lawful purposes," arguing it could enable domestic surveillance or autonomous weapons. Defense Secretary Pete Hegseth designated Anthropic a "supply chain risk" in March — a tag previously reserved for foreign-adversary-linked vendors — and Anthropic has filed suit to challenge the designation. The Pentagon is reportedly still piloting Claude Mythos Preview for unreleased cybersecurity work, and the White House has reopened talks after CEO Dario Amodei met Chief of Staff Susie Wiles.
The Department of Defense announced contracts with Nvidia, Microsoft, AWS, and Reflection AI to deploy AI on Impact Level 6 and Impact Level 7 classified networks — the most sensitive systems short of compartmented intelligence. The deals follow earlier agreements with Google, SpaceX, and OpenAI, and are framed as a vendor-diversification push following a public dispute with Anthropic over usage restrictions. Contract values were not disclosed.