this post was submitted on 20 Nov 2025
135 points (98.6% liked)
Ukraine
11096 readers
519 users here now
News and discussion related to Ukraine
Community Rules
🇺🇦 Sympathy for enemy combatants is prohibited.
🌻🤢No content depicting extreme violence or gore.
💥Posts containing combat footage should include [Combat] in title
🚷Combat videos containing any footage of a visible human involved must be flagged NSFW
❗ Server Rules
- Remember the human! (no harassment, threats, etc.)
- No racism or other discrimination
- No Nazis, QAnon or similar
- No porn
- No ads or spam (includes charities)
- No content against Finnish law
💳 Defense Aid 💥
💳 Humanitarian Aid ⚕️⛑️
🪖 Volunteer with the International Legionnaires
See also:
founded 3 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Huh, history repeating itself. In WWII, the Soviets had a type of land mine that was detonated by playing three specific frequencies over the radio. The Finns figured it out and blasted a polka tune, Säkkijärven polkka, over the radio for four months straight to jam them
That song is special because it contains a large number of unique combinations, so the soviets had a hard time finding a sequence that the song wouldn't set off.
https://www.youtube.com/watch?v=A14gZxbn0kM