The Israeli Defense Forces (IDF) is the military organization of the State of Israel. Established in 1948, it consists of ground forces, air forces, and naval forces. The IDF is responsible for defending the country against external threats and maintaining security within its borders. The IDF is known for its mandatory military service, which requires most Israeli citizens over the age of 18 to serve. This includes both men and women, making it one of the few militaries in the world with gender-integrated combat units. The IDF also engages in various humanitarian missions and disaster relief efforts.