TIL that a French and British submarine collided in 2009. They both moved so quietly that they could not detect each other and accidentally happened to run into each other.
TIL that a French and British submarine collided in 2009. They both moved so quietly that they could not detect each other and accidentally happened to run into each other.
en.wikipedia.org
HMS Vanguard and Le Triomphant submarine collision - Wikipedia
