What is the IDF?

The Israel Defense Forces (IDF; Hebrew: צְבָא הַהֲגָנָה לְיִשְׂרָאֵל Tsva ha-Hagana le-Yisra'el, lit. 'The Army of Defense for Israel'), alternatively referred to by the Hebrew-language acronym Tzahal (צה״ל), is the national military of the State of Israel. It consists of three service branches: the Israeli Ground Forces, the Israeli Air Force, and the Israeli Navy. It is the sole military wing of the Israeli security apparatus. The IDF is headed by the Chief of the General Staff, who is subordinate to the Israeli Defense Minister.

On the orders of David Ben-Gurion, the IDF was formed on 26 May 1948 and began to operate as a conscript military, drawing its initial recruits from the already-existing paramilitaries of the Yishuv—namely Haganah, the Irgun, and Lehi. It was formed shortly after the Israeli Declaration of Independence, and has participated in every armed conflict involving Israel. While it originally operated on three major fronts—against Lebanon and Syria in the north, against Jordan and Iraq in the east, and against Egypt in the south—the IDF has primarily shifted its focus to southern Lebanon and the Palestinian territories since the 1979 Egypt–Israel peace treaty and 1994 Israel–Jordan peace treaty. However, notable Israeli–Syrian border incidents have occurred frequently since 2011, due to regional instability caused by the Syrian civil war.

Since 1967, the IDF has had a close security relationship with the United States, including in research and development cooperation, with joint efforts on the F-15I, the Tactical High-Energy Laser, and the Arrow, among others. The IDF is believed to have maintained an operational nuclear weapons capability since 1967, possibly possessing between 80 and 400 nuclear warheads.

Etymology

The Israeli cabinet ratified the name "Israel Defense Forces" (Hebrew: צְבָא הַהֲגָנָה לְיִשְׂרָאֵל), Tzva HaHagana LeYisra'el, literally "army for the defense of Israel," on 26 May 1948. The other main contender was Tzva Yisra'el (Hebrew: צְבָא יִשְׂרָאֵל). The name was chosen because it conveyed the idea that the army's role was defense, and because it incorporated the name Haganah, the pre-state defensive organization upon which the new army was based. Among the primary opponents of the name were Minister Haim-Moshe Shapira and the Hatzohar party, both in favor of Tzva Yisra'el.

This is the first part of the definition.