Kyle Mizokami
Israel’s submarine corps is a tiny force with a big open secret: in all likelihood, it is armed with nuclear weapons. The five Dolphin-class submarines represent an ace in the hole for Israel, the ultimate guarantor of the country’s security, ensuring that if attacked with nukes, the tiny nation can strike back in kind.
Israel’s first nuclear weapons were completed by the early 1970s, and deployed among both free-fall aircraft bombs and Jericho ballistic missiles.
http://nationalinterest.org/blog/the-buzz/israel-military-superpower-one-simple-reason-underwater-22928
