The 3rd Infantry Brigade was founded on 18 January 1983. In 1983 Third Brigade (Sidon) was commanded by Col. Sa'id al—Qa'qur. At that time is was presumed that this brigade would eventually patrol in the South along the Israeli border. Until early 1983, units in Sidon assigned to this brigade could not leave Israeli-controlled areas for training, but that was no longer the case by mid-1983. As of 1987, the Third Brigade had disbanded.