based in Lebanon. UNIFIL made its headquarters in Naqoura close to the Lebanese-Israeli border. The majority of the force's initial personnel were provided by Canada, Iran and Sweden with support from France, Nepal and Norway. The initial force was established at 4,000 troops, but this was increased to 6,000 in May 1978. Israeli forces withdrew from the area on 13 June 1978, after which South Lebanon Army (SLA) forces under Saad Haddad remained in the area. UNIFIL began patrolling operations and established a series of positions including checkpoints, roadblocks and observation posts. Nevertheless, UNIFIL operations during this time were hindered by restrictions that were imposed on its freedom of movement and a lack of co-operation by all parties to the conflict. There were also several attacks on its personnel, including ambushes, kidnappings, shelling and sniping. As a result, only limited progress was made in fulfilment of its mandate between 1978 and 1982. During the occupation, UNIFIL's function was mainly to provide humanitarian aid amidst the Lebanese Civil War. Lebanese Civil War (until 1990) Prior to the 1982 Lebanon War, on 2 January 1982 two Ghanaian soldiers guarding a UNIFIL position were attacked by unidentified persons and one of the soldiers was shot and subsequently died. In February 1982, the force was increased by a further 1,000 troops. During the 1982 Lebanon War, commencing on 6 June 1982, Israeli forces advanced into south Lebanon. Despite being ordered to block the advance, the UN positions were either bypassed or overrun, primarily by the SLA forces under Saad Haddad. This was the main Lebanese paramilitary force supported by the Israel Defense Forces (IDF) in Southern Lebanon. The UN force was overwhelmed within a day. At least one Norwegian peacekeeper was killed in the initial attack. Following this, UNIFIL focused primarily on the distribution of aid and medical support, while a new force, the Multinational Force in Lebanon assumed primacy, being deployed in Beirut until being withdrawn in March 1984. South Lebanon conflict (until 2000) Beginning in 1985, Israel scaled back its permanent positions in Lebanon, although the IDF maintained some forces in Southern Lebanon, along with the SLA, to establish a security zone to prevent attacks on Israel from Lebanon. These forces were engaged by several groups, including Hezbollah. UNIFIL's role during this time was limited to mainly manning checkpoints and undertaking patrols, as its operations were constrained by the Israeli security zone