South Lebanon Army
From 1985 to 2000, Hezbollah, and earlier Amal, engaged the South Lebanon Army supported by the Israel Defense Forces, sometimes shelling Upper Galilee communities with Katyusha rockets. In May 2000, Israeli prime minister Ehud Barak unilaterally withdrew IDF troops from southern Lebanon, maintaining a security force on the Israeli side of the international border recognized by the United Nations. The move brought a collapse to the South Lebanon Army and takeover of Southern Lebanon by Hezbollah. However, despite Israeli withdrawal, clashes between Hezbollah and Israel continued along the border, and UN observers condemned both for their attacks.