Russia runs sub patrols same as we do, nothing really unusual about it. The Kilo is diesel electric, a quiet boat but old, not as quiet as newer boats. But in shallow waters the diesel electrics are hard to track, they have a limited range and speed tho so if you're persistent you can relocate them, they have to snorkel or surface and charge batteries.
Russia runs sub patrols same as we do, nothing really unusual about it. The Kilo is diesel electric, a quiet boat but old, not as quiet as newer boats. But in shallow waters the diesel electrics are hard to track, they have a limited range and speed tho so if you're persistent you can relocate them, they have to snorkel or surface and charge batteries.
This is not a Kilo but same sort of thing.
https://www.youtube.com/watch?v=nqFVOL7mLd4
I didn't even think about the red October connection.
https://greatawakening.win/p/12hl0VjUnL/red-october/c/
This and Biden's Russian fear mongering lately. I smell a pattern.