A small skirmish
Couldn't we just start a small skirmish off an under-developed country, say alongside the Atlantic, somewhere near Las Malvinas say. Irritate the locals first, then have all the old subs surface at once. Fire a few dummy rounds to get the locals fired up and firing back.
A short battle later, one side restores their national pride and we walk away laughing.
tbf it would really require robotic crew for each sub but not impossible.
Biting the hand that feeds IT
