Shayetet 13 (Hebrew: שייטת 13‎, lit. Flotilla 13) is the naval special forces unit of the Israeli Navy, one of the primary special operations units of the Israel Defense Forces. S'13 specializes in sea-to-land incursions, counter-terrorism, sabotage, maritime intelligence gathering, maritime hostage rescue, and boarding. The unit has taken part in almost all of Israel's major wars, as well as other actions. The unit is one of the most secretive in the Israeli military. The details of many missions and identities of active operatives are kept highly classified. The unit is arguably the best of the Middle East regionīs naval special forces units, but S13 has also faced criticism for operational failures, and lack of the international operational experience as comparable US and European naval elite units.(wikipedia)