[This video's real title is: Submarine Fleet Strength by Country 2021. But when I looked at it, I was amazed at the low numbers of submarines in the world – military submarines. The Russians at their peak in the cold war had over 200 submarines. Of course the modern submarines are also super high tech. But I was astounded at how few there were even in major European countries. Jan]

https://www.youtube.com/watch?v=vUXx51aCg1A