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Martin Valgur

@valgur

Defence, 3D computer vision, EW, GNSS, open source and C++. #NAFO github.com/valgur

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Latest posts by Martin Valgur @valgur

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Selline algatus on käima läinud..
kurikotkas.ee

14.10.2025 18:54 👍 24 🔁 5 💬 2 📌 0
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Milrem Robotics to deliver Over 150 THeMIS unmanned ground vehicles to Ukraine in Dutch-led defence initiative Milrem Robotics, Europe’s leading developer of robotics and autonomous systems, will deliver more than 150 THeMIS unmanned ground vehicles (UGVs) to Ukraine under a Dutch-funded defence support packag...

Milrem Robotics will deliver more than 150 THeMIS unmanned ground vehicles (UGVs) to Ukraine under a Dutch-funded defence support package.

06.10.2025 14:44 👍 8 🔁 2 💬 1 📌 0
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‼️🇺🇦 To shoot down one "Shahed" drone, three interceptors are required per drone—at the current rate, that's about 2,500 sorties per day. The scale is staggering, — Ukrainian air defense forces soldiers told FT

01.10.2025 15:08 👍 281 🔁 59 💬 6 📌 1
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Sapsan Ballistic Missiles in Mass Production: Ukraine Promises More “Surprises” for Russia The domestically produced Sapsan missile is now in mass production, showcasing Ukraine's growing defense industry after a successful initial combat use.

⚡️ Ukraine has begun mass-producing its Sapsan ballistic missile, with a range of up to 500 km and a warhead twice the size of ATACMS.

Kyiv promises more “surprises” for Russia as its defense industry ramps up.

23.06.2025 18:38 👍 203 🔁 28 💬 5 📌 4
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Norway to manufacture surface drones in Ukraine Norway intends to develop and manufacture uncrewed surface vessels (USVs) in Ukraine.

🇳🇴 Norway to manufacture surface drones in Ukraine

23.06.2025 08:51 👍 263 🔁 51 💬 9 📌 1
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Of great interest.

Ukrainian ground drone (UGV) rigged to launch S-5 unguided rockets from the pods normally seen on helicopters like Mi-24 HIND.

Not the first time aircraft rocket pods have been ground launched, but this is mad max and terminator combined.

22.06.2025 10:38 👍 287 🔁 43 💬 10 📌 4
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🇳🇱🇩🇰🇵🇱🇫🇮 NATO is conducting large-scale trials of unmanned maritime systems in the Baltic and North Seas as part of the Task Force X Baltic initiative to protect underwater infrastructure and provide situational awareness.

21.06.2025 10:03 👍 732 🔁 133 💬 6 📌 7
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SuperPlace: The Renaissance of Classical Feature Aggregation
for Visual Place Recognition in the Era of Foundation Models
Bingxi Liu, Pengju Zhang, Li He, Hao Chen, Shiyi Guo, Yihong Wu, Jinqiang Cui, Hong Zhang
tl;dr: some changes to GeM and NetVLAD ftw.
arxiv.org/abs/2506.13073

17.06.2025 09:03 👍 7 🔁 1 💬 0 📌 0

3.5 times increase in telecoms sabotage. 30 instances since Easter. 🐣

Concentrated to highway linking south Sweden/Europe to southeast coast/Gotland ferries.

06.06.2025 10:30 👍 357 🔁 105 💬 10 📌 7
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Put it in rice

04.06.2025 16:06 👍 945 🔁 86 💬 55 📌 20
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‼️ Russia produces about 170 Shaheds per day. Plans to produce much more, — GUR

Along with the Shaheds, the Russians use decoy drones such as "Gerbera-2" and "Parodiya". Their purpose is to clear the way for real "Shaheds", which carry a lot of explosives.

04.06.2025 15:04 👍 169 🔁 27 💬 4 📌 2
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A Signal Point of Failure: Integrating BeiDou into U.S. Positioning, Navigation, and Timing Systems - War on the Rocks While serving on the National Security Council staff in the Biden administration, I was tasked with strengthening the resilience of U.S. critical

China’s satellite system is up and running with global coverage. Relying on it as a GPS backup is controversial, but it may be practical. warontherocks.com/20...

03.06.2025 10:00 👍 9 🔁 2 💬 3 📌 0

Risky post!

(This is great, fun to read and the frustrated tone throughout really does capture how it feels sometimes to be an experienced programmer trying to argue that "LLMs are actually really useful" in many corners of the internet)

02.06.2025 23:41 👍 151 🔁 19 💬 13 📌 3
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Of course open source software has been used in war before, but seeing ArduPilot Mission Planner being used to blow up Russian strategic bombers is still wild.

01.06.2025 15:55 👍 1047 🔁 212 💬 15 📌 18
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Weekend Update #135: Scratch That: The Ukrainians Just Pulled Off The Most Successful Operation Of The War The New York Times Shows How Trump/Putin Control The Narrative; Trump Delays Again

Hi All, I released my weekend update a few hours ago, and the Ukrainians turned around and launched what is arguably the most successful operation of the war--so I updated it with all the information I could get. Russian strategic airpower received a mighty blow. open.substack.com/pub/phillips...

01.06.2025 16:32 👍 533 🔁 147 💬 22 📌 9
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If you’re wondering why the SBU are being so open about the methodology behind today’s attack; imagine the impending disruption to Russian logistics as the FSB are forced to double check a few million cargo containers for Ukrainian surprises

01.06.2025 16:52 👍 609 🔁 131 💬 27 📌 9

This is how you do a special military operation

01.06.2025 12:05 👍 54 🔁 5 💬 3 📌 0
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Today is a day that will go down in history and one of the most successful sabotage operations of all time.

At least 2, possibly 3 air bases struck by FPVs simultaneously destroying large numbers of Russian strategic bombers.

01.06.2025 11:39 👍 471 🔁 88 💬 19 📌 11
Why This Russian Drone Developer Isn’t Impressed by U.S. Tech
Why This Russian Drone Developer Isn’t Impressed by U.S. Tech YouTube video by Real Reporter

Fascinating interview with a private drone designer for the RU military. His knowledge of UKR & Western drones is limited and should be taken with some skepticism but he still presents a quite candid picture into the current state of unmanned warfare:🧵

www.youtube.com/watch?v=RmfN...

31.05.2025 19:59 👍 156 🔁 44 💬 9 📌 11
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Fields covered with fiber optic lines on the front lines.

30.05.2025 19:58 👍 440 🔁 72 💬 14 📌 8
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I believe the Kaliningrad and St Petersburg (and more?) spoof-jammers have increased their reach significantly.

The area around Baltic Sea presently affected by electronic warfare directed at GNSS/GPS-receivers is enormous, larger than before.

Bbl with a timelapse. Nb, this is reach at 10-30k ft.

27.05.2025 21:11 👍 227 🔁 81 💬 13 📌 5
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❗️In 🇪🇪Estonia, plans to create a parallel defense structure by pro-Russian politicians with the support of 🇷🇺Russian military intelligence were exposed.

27.05.2025 08:09 👍 169 🔁 55 💬 4 📌 0
Introducing Claude
Establishing the model’s personality
Model safety
More points on style
Be cognizant of red flags
Is the knowledge cutoff date January or March?
election_info
Don’t be a sycophant!
Differences between Opus 4 and Sonnet 4
The missing prompts for tools
Thinking blocks
Search instructions
Seriously, don’t regurgitate copyrighted content
More on search, and research queries
Artifacts: the missing manual
Styles
This is all really great documentation

Introducing Claude Establishing the model’s personality Model safety More points on style Be cognizant of red flags Is the knowledge cutoff date January or March? election_info Don’t be a sycophant! Differences between Opus 4 and Sonnet 4 The missing prompts for tools Thinking blocks Search instructions Seriously, don’t regurgitate copyrighted content More on search, and research queries Artifacts: the missing manual Styles This is all really great documentation

I put together an annotated version of the new Claude 4 system prompt, covering both the prompt Anthropic published and the missing, leaked sections that describe its various tools

It's basically the secret missing manual for Claude 4, it's fascinating!

simonwillison.net/2025/May/25/...

25.05.2025 13:51 👍 240 🔁 33 💬 12 📌 5

Finnish land survey authorities switches to blimps with electronics hardened against GPS/GNSS jamming after "directed attacks" made some of last seasons aerial photography via normal air planes impossible.

22.05.2025 20:21 👍 166 🔁 31 💬 5 📌 3
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Huh. Looks like Plato was right.

A new paper shows all language models converge on the same "universal geometry" of meaning. Researchers can translate between ANY model's embeddings without seeing the original text.

Implications for philosophy and vector databases alike. arxiv.org/pdf/2505.12540

23.05.2025 02:44 👍 254 🔁 45 💬 9 📌 13
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russia has begun using new kamikaze drones that select targets and carry out strikes without operator involvement.

These drones can fly up to 100 km from the front line, are equipped with cameras and computer vision, operate without GPS, and independently decide when and where to strike.

21.05.2025 14:19 👍 42 🔁 13 💬 3 📌 2
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Exclusive: Musk's SpaceX is frontrunner to build Trump's Golden Dome missile shield Elon Musk's SpaceX and two partners have emerged as frontrunners to win a crucial part of President Donald Trump's "Golden Dome" missile defense shield, six people familiar with the matter said.

The golden dome project, an exorbitantly expensive project for America's survival (??) "because it is a very dangerous world out there". Guess who is in the running for key contracts? SpaceX, Anduril, Palantir. a16z & Founders Fund, laughing all the way to the bank. www.reuters.com/business/aer...

20.05.2025 20:26 👍 19 🔁 11 💬 1 📌 2

Impressive feat, however:
“[...] the evacuation of wounded soldiers by ground robots is now a last resort. [...] This is still not the highest level of reliability. Every time such a mission is carried out, everyone is extremely tense," head of the UGV department of the brigade shared.

20.05.2025 13:29 👍 8 🔁 1 💬 0 📌 0

An excellent overview of how current AI-for-science research is producing mostly highly biased results, unfortunately.

"In fact, I suspect that scientists are switching to AI less because it benefits science, and more because it benefits them."

19.05.2025 19:00 👍 5 🔁 1 💬 0 📌 0
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Satellite images reveal massive upgrade at Nenoksa naval missile testing site Russia has over the last two years built a unique new facility for launching missiles at the infamous Nenoksa test site on the coast of the White Sea.

“🇷🇺 RUS has over the last two years built a new missile launching facility at the infamous Nenoksa test site on the White Sea.

The Barents Observer studied satellite images for the years after the 2019-accident when a Burevestnik nuclear-powered missile exploded at sea, killing 5 Rosatom experts.”

19.05.2025 18:25 👍 8 🔁 2 💬 0 📌 0