De Clerck and Malsagne and Traboulsi date the Sidon fishermen's protest to 26 February 1975. The marchers opposed Protein, a fishing company whose board included Camille Chamoun; their leader, Maarouf Saad, was shot and died some days later. Clashes between the army and armed groups in Sidon and Tyre followed at the start of March: de Clerck and Malsagne give 6 soldiers and 11 civilians killed and an army pull-out from Tyre, Hanf 5 soldiers and 11 civilians. The Kataeb staged a pro-army demonstration in Beirut. Hanf puts the fishermen's protest in March, and Picard describes the Sidon marchers as Palestinian militants.

Historians describe the Tripoli-Zgharta round as following the Zahleh fighting of late August: kidnappings on both sides, the killing of twelve Muslim bus passengers on the Beirut-Tripoli road, attacks on Christian villages in Akkar and the flight of Christians from Tripoli and Akkar. It ended when the army created a buffer zone between the two towns.

De Clerck and Malsagne date the siege of Tal al-Za'tar from 4 January 1976 to the camp's fall on 12 August. According to Hanf, Interior Minister Camille Chamoun had Internal Security Forces units join the assault.

In Beirut in early June, Hanf writes, Fatah and its allies turned on Saiqa, the PLA and the pro-Syrian parties and cleared them from the city within a few hours. Syria's regular army stayed outside the capital for now: on 7 June its troops got as far as Sofar on the Beirut-Damascus road and into Sidon, where an armoured column was wiped out. Syrian forces reached Beirut only in mid-November, within the Arab Deterrent Force.

Tal al-Za'tar fell on 12 August 1976 (13 August in Ménargues) after more than 70 assaults. Ménargues and Hanf count a siege of 52-53 days from the final offensive; de Clerck and Malsagne and Traboulsi count six months from the January blockade. An ICRC report cited by de Clerck and Malsagne puts the dead at about 2,500 residents and defenders and up to 800 attackers; many died trying to escape. The Tigers and the Guardians of the Cedar led the last assault, reportedly with Syrian and Israeli officers present. The camp was bulldozed and never rebuilt.

Hanf has the Syrian army moving again only once Tal al-Za'tar had fallen, increasing pressure on the encircled Palestinian and leftist forces in the Upper Metn; these were expelled at the end of September.

Ratified by an Arab summit in Cairo on 25 October, the Riyadh decisions required all parties to surrender heavy weapons and the Palestinians to return to the zones granted by the 1969 Cairo Agreement, and created a 30,000-man Arab Deterrent Force under President Sarkis, its largest contingent by far, 25,000-27,000 men, being the Syrian troops already in Lebanon. Saudi Arabia had sent the invitations on 15 October; the leaders of Saudi Arabia, Kuwait, Egypt, Syria and Lebanon met the PLO chairman in Riyadh on 16, 17 or 18 October, depending on the historian. The cease-fire's start is dated 16 October (Hanf), 21 October (Traboulsi) or 15 November (de Clerck and Malsagne).

Under the Riyadh decisions of October 1976 all parties were to give up heavy weapons to the Arab Deterrent Force; the Hoss government set a 5 December 1976 deadline (Traboulsi). Fisk reports the militias did not hand them in; Hanf, that the Palestinians moved most of theirs south of the 'red line'.

Historians date the Fayadiyeh incident to 7 February (de Clerck and Malsagne), 8 February (Hanf) or 17 February (Ménargues). It began when Syrian soldiers set up a roadblock in front of the Military Academy; officer cadets, led according to de Clerck and Malsagne by Captain Samir (Sami) al-Achkar, fought back and Syrian artillery shelled the barracks. Syrian losses are given as 13 dead and 36 wounded (de Clerck and Malsagne), over 30 dead (Ménargues) or 220 dead and 30 wounded (Hanf). As fighting spread into East Beirut, about a hundred people died when Syrian guns shelled Badaro, Ain el-Remmaneh and Karm el-Zeitoun. Sarkis and Damascus settled the affair with a joint Lebanese-Syrian military court. De Clerck and Malsagne date the Syria-Christian split to it.

De Clerck and Malsagne record that Frangieh had quit the Lebanese Front the day before over its ties with Israel. The reconciliation, Hanf notes, made the north a pro-Syrian bloc.

Hanf writes that the Lebanese Front was left with an enclave of roughly a tenth of Lebanon once Syrian troops had moved into the northern Christian mountains, Koura, Batroun and the coast as far as the Madfoun bridge. Frangieh gave Kataeb members in the north until the month's end to give up their weapons and quit the party, or else leave.

Fisk: in the April 1980 fighting at At-Tiri, Haddad's gunmen killed Private Stephen Griffin of the Irish UNIFIL battalion and UN troops killed a militiaman, whose death two other Irish soldiers later paid for. The militia also held the coastal strip between the French unit and Naqoura and shot at helicopters.