Kari Järnström 🇫🇮🇺🇦🇪🇺
@karza.bsky.social
Managing Director in Tech, M. Sc., Finnish Navy Staff Officer (res), Cold War Veteran. Interested in sailing, Swans, naval warfare and history, C4ISR, MCM
Reposted by Kari Järnström 🇫🇮🇺🇦🇪🇺
⚓️ This article from June 2025 by ‚Techjournalist’ is amazingly useful - it systematically lists and discusses OSINT sources & methods for tracking #shadowfleet activities and identifying potentially suspicious behavior.💡
Thanks to @vesselspotter.bsky.social for pointing me to it! 🙏🏻
Thanks to @vesselspotter.bsky.social for pointing me to it! 🙏🏻
Exposing Russia’s Undersea Shadow War
Tracking Russia’s Hybrid Naval Threat in European Waters (Part 1)
techjournalism.medium.com
September 19, 2025 at 6:25 AM
⚓️ This article from June 2025 by ‚Techjournalist’ is amazingly useful - it systematically lists and discusses OSINT sources & methods for tracking #shadowfleet activities and identifying potentially suspicious behavior.💡
Thanks to @vesselspotter.bsky.social for pointing me to it! 🙏🏻
Thanks to @vesselspotter.bsky.social for pointing me to it! 🙏🏻
Jaaha, II/88 ei kotiudu koskaan
August 28, 2025 at 11:27 AM
Jaaha, II/88 ei kotiudu koskaan
OPV Turva Katajanokalla
August 20, 2025 at 5:51 AM
OPV Turva Katajanokalla
Atlantin valli, mutta missä?
July 30, 2025 at 4:57 PM
Atlantin valli, mutta missä?
Mielenkiintoinen tutkielma. Indikoisi että Suomenlahden GPS-häirintää tehdään liikkuvalta lavetilta.
Spend the day making some technical analysis of the Russian GNSS-spoofers in the Gulf of Finland.
Maybe you find that interesting as well?
Maybe you find that interesting as well?
Going in Circles
Over the past year, there has been a marked increase in disruptions to satellite navigation systems across the Gulf of Finland, with reports of aircraft and ships receiving false GPS signals. Evidence...
christian.panton.org
July 22, 2025 at 8:52 AM
Mielenkiintoinen tutkielma. Indikoisi että Suomenlahden GPS-häirintää tehdään liikkuvalta lavetilta.
Reposted by Kari Järnström 🇫🇮🇺🇦🇪🇺
Significant Russian Military Exercises
Russian forces continued major naval exercises in the Baltic Sea involving more than 20 warships and 25 aircraft, likely in support of the Kremlin's recent escalatory rhetoric against the Baltic States.
Full report here: isw.pub/ForceGen061125
Russian forces continued major naval exercises in the Baltic Sea involving more than 20 warships and 25 aircraft, likely in support of the Kremlin's recent escalatory rhetoric against the Baltic States.
Full report here: isw.pub/ForceGen061125
June 11, 2025 at 9:21 PM
Significant Russian Military Exercises
Russian forces continued major naval exercises in the Baltic Sea involving more than 20 warships and 25 aircraft, likely in support of the Kremlin's recent escalatory rhetoric against the Baltic States.
Full report here: isw.pub/ForceGen061125
Russian forces continued major naval exercises in the Baltic Sea involving more than 20 warships and 25 aircraft, likely in support of the Kremlin's recent escalatory rhetoric against the Baltic States.
Full report here: isw.pub/ForceGen061125
Reposted by Kari Järnström 🇫🇮🇺🇦🇪🇺
In the waters of the North Sea, the frigate Admiral Kasatonov and the destroyer "Vice Admiral Kulakov" performed artillery firing at sea and air targets.
(Baltic Sea)The Admiral Kasatonov frigate, in cooperation with ships of the Baltic Fleet, practiced the task of striking conditional enemy ships.
(Baltic Sea)The Admiral Kasatonov frigate, in cooperation with ships of the Baltic Fleet, practiced the task of striking conditional enemy ships.
June 10, 2025 at 7:37 AM
In the waters of the North Sea, the frigate Admiral Kasatonov and the destroyer "Vice Admiral Kulakov" performed artillery firing at sea and air targets.
(Baltic Sea)The Admiral Kasatonov frigate, in cooperation with ships of the Baltic Fleet, practiced the task of striking conditional enemy ships.
(Baltic Sea)The Admiral Kasatonov frigate, in cooperation with ships of the Baltic Fleet, practiced the task of striking conditional enemy ships.
Helppo ja palkitseva peli…
June 10, 2025 at 6:25 AM
Helppo ja palkitseva peli…
Reposted by Kari Järnström 🇫🇮🇺🇦🇪🇺
Onkohan Ukrainassa luettu Tom Clancya? Myös operaatio ”Dreamlandissa” tuhottiin venäjän pommittajat kentälle. Tosin häivehävittäjin ja täsmäasein UAS:ien puuttuessa 30v sitten.
June 3, 2025 at 5:25 AM
Onkohan Ukrainassa luettu Tom Clancya? Myös operaatio ”Dreamlandissa” tuhottiin venäjän pommittajat kentälle. Tosin häivehävittäjin ja täsmäasein UAS:ien puuttuessa 30v sitten.
Ukrainan merivoimien lippuja… sotaviiri lähes samanlainen kuin meillä.
May 27, 2025 at 6:01 AM
Ukrainan merivoimien lippuja… sotaviiri lähes samanlainen kuin meillä.
”Erittäin todennäköisesti matkalla telakalle, mutta saattaa ennen sitä olla operatiivisessa roolissa mahdollisesti 1-3kk Itämerellä ven kalustovajauksen vuoksi”
🔺OOA activity - Update
Comment on Russian Navy Northern Fleet Pr.1155 Udaloy class BPK-626 “VAdm Kulakov” entering the Baltic Sea, 26 May 2025.
open.substack.com/pub/jamesdro...
Comment on Russian Navy Northern Fleet Pr.1155 Udaloy class BPK-626 “VAdm Kulakov” entering the Baltic Sea, 26 May 2025.
open.substack.com/pub/jamesdro...
Russian destroyer enters the Baltic Sea, increasing regional naval capability
Northern Fleet "Vice Admiral Kulakov" is likely bound for maintenance activity however, with two Steregushchiy deployed, it is possible Kulakov could conduct operational activity in the Baltic Sea
open.substack.com
May 27, 2025 at 5:46 AM
”Erittäin todennäköisesti matkalla telakalle, mutta saattaa ennen sitä olla operatiivisessa roolissa mahdollisesti 1-3kk Itämerellä ven kalustovajauksen vuoksi”
Proud Dad Moment, pojan ensimmäinen KH takana.
May 26, 2025 at 4:52 AM
Proud Dad Moment, pojan ensimmäinen KH takana.
Green Admirella kova vauhti päällä eilen. Warp drive jopa? Vakavasti ottaen todenäköisesti AIS väärennös (spoofing) venäläisten toimesta.
May 19, 2025 at 5:49 AM
Green Admirella kova vauhti päällä eilen. Warp drive jopa? Vakavasti ottaen todenäköisesti AIS väärennös (spoofing) venäläisten toimesta.
Klassinen merenhalinnan/käytön kiistäminen, mutta ilman perinteisiä taistelualuksia ja miina-asetta (ei havaintoja).
“We have completely blocked the Black Sea Fleet in the waters near the port of Novorossiysk,” said Kyrylo Budanov, head of Ukraine’s Defence Intelligence, commenting on the effectiveness of Magura sea drones
Naval drone operations became a central focus of the documentary "Sea Battle:The Drone Era"
Naval drone operations became a central focus of the documentary "Sea Battle:The Drone Era"
May 11, 2025 at 6:40 AM
Klassinen merenhalinnan/käytön kiistäminen, mutta ilman perinteisiä taistelualuksia ja miina-asetta (ei havaintoja).
Reposted by Kari Järnström 🇫🇮🇺🇦🇪🇺
Kova kattaus Viestiupseeriyhdistyksen 80v-juhlaseminaarissa
May 6, 2025 at 12:46 PM
Kova kattaus Viestiupseeriyhdistyksen 80v-juhlaseminaarissa
Reposted by Kari Järnström 🇫🇮🇺🇦🇪🇺
Vessels coming into Helsinki, Finland - May 1/2, 2025
- German Navy FGS Oker (A53)
- Royal Netherlands Navy HNLMS Snellius (A802)
- German Navy FGS Datteln (M1068)
- Belgian Navy BNS Lobelia (M921)
SRC: webcam
- German Navy FGS Oker (A53)
- Royal Netherlands Navy HNLMS Snellius (A802)
- German Navy FGS Datteln (M1068)
- Belgian Navy BNS Lobelia (M921)
SRC: webcam
May 2, 2025 at 1:16 PM
Vessels coming into Helsinki, Finland - May 1/2, 2025
- German Navy FGS Oker (A53)
- Royal Netherlands Navy HNLMS Snellius (A802)
- German Navy FGS Datteln (M1068)
- Belgian Navy BNS Lobelia (M921)
SRC: webcam
- German Navy FGS Oker (A53)
- Royal Netherlands Navy HNLMS Snellius (A802)
- German Navy FGS Datteln (M1068)
- Belgian Navy BNS Lobelia (M921)
SRC: webcam
Reposted by Kari Järnström 🇫🇮🇺🇦🇪🇺
National Veterans Day 🇫🇮
Finnish forces lifting a flag at the "Three Nations border stone" 1945.
Finnish forces lifting a flag at the "Three Nations border stone" 1945.
April 27, 2025 at 9:10 AM
National Veterans Day 🇫🇮
Finnish forces lifting a flag at the "Three Nations border stone" 1945.
Finnish forces lifting a flag at the "Three Nations border stone" 1945.
”By contributing a rare and specialized system, Finland has enabled Ukrainian engineers to conduct complex battlefield tasks more efficiently and safely—strengthening defense and offensive operations in mined and contested terrain.”
⚡️ Finland’s Leopard 2R mine-clearing tanks have become a game-changer for Ukraine’s engineers, helping clear paths through minefields and boosting frontline mobility. All six vehicles are now active in Ukrainian brigades.
united24media.com/latest-news/...
united24media.com/latest-news/...
How Finland’s Leopard 2R Mine-Clearing Tanks Became a Breakthrough Asset for Ukraine’s Engineers
Finland's Leopard 2R mine-clearing vehicles are now fully operational in the Ukrainian Armed Forces, enhancing capabilities for safe troop movement.
united24media.com
April 22, 2025 at 11:38 AM
”By contributing a rare and specialized system, Finland has enabled Ukrainian engineers to conduct complex battlefield tasks more efficiently and safely—strengthening defense and offensive operations in mined and contested terrain.”
Reposted by Kari Järnström 🇫🇮🇺🇦🇪🇺
A Finnish Air Force officer has flown aboard a NATO E-3A Airborne Warning and Control System (AWACS) aircraft for the first time, marking a key milestone in Finland’s integration into NATO air operations.
ukdefencejournal.org.uk/finnish-crew...
ukdefencejournal.org.uk/finnish-crew...
Finnish crew joins NATO AWACS for first time
A Finnish Air Force officer has flown aboard a NATO E-3A Airborne Warning and Control System (AWACS) aircraft for the first time, marking a key milestone in Finland’s integration into NATO air operations.
ukdefencejournal.org.uk
April 20, 2025 at 8:12 AM
A Finnish Air Force officer has flown aboard a NATO E-3A Airborne Warning and Control System (AWACS) aircraft for the first time, marking a key milestone in Finland’s integration into NATO air operations.
ukdefencejournal.org.uk/finnish-crew...
ukdefencejournal.org.uk/finnish-crew...