Syria, Hanf writes, had lost interest in disarming the Palestinians by autumn 1977, with Sadat's initiative under way, and the deal soon counted for nothing. It had bound the PLO to keep out of a ten-kilometre belt beside the Israeli frontier and, chiefly, to halt raids and shelling across it.

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 and Haugbolle list this 1978 play first among Ziad Rahbani's comedies, which satirised the war from West Beirut.

Historians date the start of Operation Litani to 14 March (de Clerck and Malsagne, Traboulsi, Quéméner; de Clerck's chronology gives 15 March) and its end to 21 March. Up to 25,000 Israeli soldiers and 120 tanks took part (de Clerck and Malsagne). Estimates of the dead range from about 300 Palestinian fighters (de Clerck and Malsagne) to about 2,000 people, mostly civilians (Fisk; de Clerck and Malsagne; Picard). Estimates of the displaced range from 150,000 (Hanf's refugee table) and more than 200,000 (de Clerck and Malsagne, Picard) to 285,000 (Lebanese government figure cited by Fisk). On 15 March Israeli aircraft bombed the Palestinian camps of Beirut, Tyre and Damour.

Resolution 425 was adopted with Resolution 426, which set up the force; the USSR abstained (de Clerck and Malsagne). UNIFIL later numbered about 6,000 soldiers, with France providing the largest first contingent (1,290 men).

Fisk dates the arrival in Tyre of UNIFIL's first unit, Colonel Jean Germain Salvan's French paratroopers, to 23 March. That morning, at the nearby Hassan Borro barracks, Palestinians and Lebanese officers nearly opened fire over the handover.

Fisk adds that during the invasion Gur declared that Israel would fall back to the Christian enclaves as a border 'security belt': the strip that became Major Haddad's.

Hanf has Syrian guns shelling Ain el-Remmaneh on the day of mourning called after the Qaa killings, and the Syrian troops ignoring Sarkis's order to cease fire. Ménargues puts Bashir Gemayel's brief detention at a Syrian checkpoint at the end of July.

Fisk adds that the Syrian shelling slackened around this time after sonic booms from a pair of Israeli jets flying low over West Beirut.

Hanf writes that Major Haddad's forces fired at Kaukaba on the units sent south in early August, men of the 'vanguard' Syria trusted, and drove them into retreat. Haddad later rebelled openly against the army command, and Israel took over paying his men.

Ménargues writes that when the Moukafaha, Johnny Abdo's own intervention unit, arrested Elie Hobeika for allegedly having the Saudi ambassador's helicopter fired on, Bashir Gemayel had about a hundred army officers abducted; they were traded for Hobeika three weeks later.

The Saudis announced their departure in March 1979 (Ménargues). Picard has Syria's partners, among them Saudis, Sudanese and Emiratis, leaving two years after the 1976 summits; de Clerck and Malsagne call the ADF wholly Syrian from 1979.

Ménargues: once the Saudis said in March 1979 they would hand their positions to the army, an army–militia clash looked inevitable; intelligence chief Johnny Abdo reopened contact with Bashir.