Mossad ( , ) is the national intelligence agency of Israel. It is one of the main entities in the Israeli Intelligence Community, along with Aman (military intelligence) and Shin Bet (internal security). Mossad is responsible for intelligence collection, covert operations, and counter-terrorism. Its director answers directly and only to the Prime Minister. Its annual budget is estimated to be around 10 billion shekels (US$2.73 billion) and it is estimated that it employs around 7,000 people directly, making it one of the world's largest espionage agencies. Unlike other security bodies (such as the Israel Defense Forces or the Israel Security Agency), its purpose, objectives, roles, missions, powers or budget have not been defined in any law. History Mossad was formed on December 13, 1949, as the Central Institute for Coordination at the recommendation of Prime Minister David Ben-Gurion to Reuven Shiloah. Ben Gurion wanted a central body to coordinate and improve cooperation between the existing security services—the army's intelligence department (AMAN), the Internal Security Service (Shin Bet), and the foreign office's "political department". In March 1951, it was reorganized and made a part of the prime minister's office, reporting directly to the prime minister. Organization Mossad has been described by Ronen Bergman as a "deep state" because of the way (justified by "state security") that it has been able to carry out actions that would otherwise be subject to prosecution. Units The largest department of Mossad is Collections, tasked with many aspects of conducting espionage overseas. Employees in the Collections Department operate under a variety of covers, including diplomatic and unofficial. The Political Action and Liaison Department is responsible for working with allied foreign intelligence services, and nations that have no normal diplomatic relations with Israel. Additionally, Mossad has a Research Department, tasked with intelligence production, and a Technology Department concerned with the development of tools for Mossad activities. Metsada Metsada is a unit responsible for attacking the enemy. Metsada runs "small units of combatants" whose missions include "assassinations and sabotage". Kidon The Kidon is a unit which belongs to the Caesarea department (one of Mossad's eight departments). It is described by Yaakov Katz as "an elite group of expert assassins who operate under the Caesarea branch of the espionage organization. Not much is known about this mysterious unit, details of which are some of the most closely guarded secrets in the Israeli intelligence community." It recruits from "former soldiers