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Watching TV shows or movies that display Russia as a military superpower is almost surreal nowadays.
(self.showerthoughts)
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.
I think the old ones are loud, but newer ones can be really quiet. IRC Sweden had one that did well in war games. Gotland class. France also has really modern ones.
Basically they chugachugachugachuga, then go into battery mode and dissappear off sonar. Range is low obviously. Batteries don't last that long.
Don't think the Russians have those though. Their navy has been a joke for over a century.