The 11th Ranger Battalion, also known as the 11e Bataillon de Rangers, was a unit in the Army of the Republic of Vietnam (ARVN) during the Vietnam War. These elite units were trained for special operations, reconnaissance, and conducting raids against enemy positions. The battalion participated in numerous operations during the Vietnam War, including counterinsurgency missions against the Viet Cong and North Vietnamese forces. They were known for their specialized training and were often tasked with high-risk missions behind enemy lines. The 11th Ranger Battalion received support, training, and equipment from the United States, and American advisors often worked closely with ARVN Ranger units to enhance their capabilities.