The National Interest

Dolphin-Class Submarine: Israel’s Unofficial Nuclear Weapons Platform

So, while not as powerful as an American or Russian ballistic nuclear missile submarine, the Dolphin-class affords Israel with an essential second-strike capability that it otherwise would lack.
The National Interest

Israel’s Dolphin-class Submarines Form the Backbone of Its Nuclear Triad

The Israeli Navy currently operates five Dolphin-class submarines based at Haifa. These diesel-electric vessels were designed and constructed by Germany’s Howaldtswerke-Deutsche Werft in the late ...
Reuters

Israel won't base submarines in Red Sea -official

(Adds return of submarine) By Dan Williams TEL AVIV, July 5 (Reuters) - Israel has no plan to station submarines in Eilat, a defence official said on Sunday, playing down speculation the Red Sea port ...