Ménargues dates the resignation to March 1980, after repeated deadlock between Hoss and Sarkis over the army; Hoss stayed on as caretaker until Shafiq Wazzan's appointment in late October.

The crisis began on 20 December when Elias Hannouche, a former Tiger commander backed by Syria, seized the old National Liberal office in Zahle. After an ambush inside the town killed five Syrian soldiers on 22 December, Syrian artillery opened fire on it (Ménargues; Hanf counts an officer and five soldiers). De Clerck and Malsagne date the bombardment to 21 December and call it the first round of the battle of Zahle. Most of the former Tigers then joined the Lebanese Forces, and Syrian troops stayed positioned around the town until the siege of spring 1981.

The meeting was called after Begin told the Knesset on 4 June of his promises to Lebanon's Christians. The Arab envoys asked Bashir Gemayel to break with Israel; he demanded guarantees in return (Hanf, Ménargues).

Ménargues has some 600 Internal Security Forces gendarmes entering Zahleh on 30 June, ending the siege, and the 95 fighters from outside the town leaving by bus over a mountain road behind a Syrian colonel's car, past Syrian troops posted along it; Hanf says they left under Saudi escort. Siege toll: 200 dead and over 2,000 wounded (Ménargues), over 200 and 2,000 (de Clerck and Malsagne), 300 and 3,000 by the Phalange's count (Fisk).

Ménargues dates the bombing to 16 December. The six-storey embassy at Ramlet al-Baida was destroyed by an explosives-laden car driven by Shiite suicide attackers; a group nobody knew claimed it, and the ambassador's body took four days to find. It followed heavy fighting in West Beirut on 4 December between Amal and pro-Iraqi Baathists, and a Lebanese Forces visit to Baghdad.

Abu Nidal's group, an enemy of the PLO leadership, had shot Shlomo Argov, Israel's ambassador in London, on the night of 3 June; Israel answered with the raids. Robert Fisk notes that the bombs hit a PLO arms dump in the old stadium near Fakhani and a Palestinian children's hospital by Sabra; Palestinian sources gave 50 dead, Lebanese officials 210 civilians. The original's 'Fakhani attack' is the Israeli raid of 17 July 1981.

A Palestinian Katyusha killed an Israeli motorist in Galilee on 5 June, a day of some 50 Israeli raids by Fisk's count, which left civilians burning in cars on the coast road north of Damour. Picard's chronology and one passage of de Clerck and Malsagne date the start of the invasion to 5 June; the books' main chronologies give 6 June.

The invasion, called 'Operation Peace for Galilee', began on Sunday 6 June: Israeli commandos crossed the border at 1.30 a.m. to attack Beaufort castle (Ménargues), and up to 25,000 troops moved along the coast, through Tibnin and across the eastern sector (Fisk). The government declared a limited aim of a 40-kilometre zone, but Defence Minister Ariel Sharon and Chief of Staff Rafael Eitan kept advancing (Hanf). One overview in de Clerck and Malsagne and Picard's chronology give 5 June.

Fisk: on 8 June Israeli paratroopers set up a listening post on the Barouk heights and close to 100 tanks advanced from Baaqlin to Beit Eddine, unopposed by the Chouf Druze. Hanf: Israel told Syria, via American diplomats, that its only target was the PLO.

On 9 June Israeli aircraft destroyed the Syrian SAM missile batteries in the Bekaa and fought a long air battle with Syrian MiGs. Figures: 22 MiGs downed and 19 batteries destroyed that day (Ménargues); more than 80 planes and all missile batteries lost in five days (Picard). The same evening Israeli paratroopers took Damour, on the coast south of Beirut.

Robert Fisk cites Red Cross and police counts of 9,583 killed and 16,608 wounded across Lebanon by 14 June; Israel's own civilian casualty figure for 4-21 June was 460. Hanf notes that the Syrian-Israeli ceasefire of 11 June excluded the PLO.

On 13 June Israeli forces reached Baabda and Yarze, seats of the presidency and the army command, and joined the Lebanese Forces' lines (Hanf, Ménargues); Fisk dates the arrival of Sharon and his forward troops at Baabda to just before midnight.

Ménargues and Fisk date the decision to form the committee to 14 June; Traboulsi has it convening on 20 June. Philip Habib attended its sessions of 22 and 23 June. Its agenda, Traboulsi notes, dealt with the PLO's withdrawal, not the Israeli occupation; Jumblatt quit the committee and the cabinet rather than 'deal the final blow to the Palestinians', and Berri stopped taking part.