De Clerck and Malsagne have Iranian clerics and activists settling in the Bekaa, and then in Tyre, from 1980, before 500 to 2,000 Revolutionary Guards entered Lebanon in June 1982.

Deploying the army, Sarkis insisted on his return from an Arab meeting at Ta'if in February 1980, should come before political reform (Traboulsi). Amal and the Phalange newspaper al-Amal also called for the army to be sent south (Traboulsi; Hanf).

Hanf places it in early 1980. Palestine Liberation Army units under Syrian or pro-Syrian command took over the Syrian posts in and near Beirut, while the Syrian troops, bar one garrison, quit the city's dividing line and the coast road to the south and redeployed to the heights above the capital.

One of many clashes between Kataeb and National Liberal militiamen: de Clerck and Malsagne count 46, with 200 dead, from 1976 to 1980, the latest wave running from 12 May 1979 to 2 July 1980 and reaching Achrafieh early in 1980. Ménargues traces the tension of early 1980 partly to disputes over dividing the arms Israel supplied.

See the note on the entry of 25 January 1980.

Historians describe the Syrian pull-back from Beirut in 1980 as a redeployment to the Bekaa and to mountain positions overlooking the capital, with a garrison kept in West Beirut (Hanf). The Lebanese army could not replace the departing Arab Deterrent Force everywhere (Picard).

Ménargues writes that Bashir Gemayel usually took Maya to her grandmother's on Saturdays but, sick after the sea crossing from Jerusalem the day before, had her governess and his bodyguards take her in his car, which was blown up less than a kilometre from his home. He blames the Palestinians there; later he says an inquiry into Aman el-Mandoubine, a network run by a Fatah intelligence officer, led to the arrest of two Christians who planted the bomb. One annex dates the attack 21 February.

Officially no killer was named, but al-Lawzi's murder was widely blamed on his criticism of Syrian rule (Fisk; Picard). Fisk: he was seized near a Syrian army checkpoint heading for the airport.

De Clerck and Malsagne list Wadi Chahrour and Kfarchima among the National Liberals' bases in Beirut's south-eastern suburbs and end the wave of clashes between Christian militias on 2 July 1980. Ménargues describes near-daily fighting in the second half of June. Bashir Gemayel settled the rivalry by force on 7 July.

Historians date the assault to 7 July 1980 (Ménargues, de Clerck and Malsagne, Hanf, Traboulsi, Picard). At dawn Bashir Gemayel's units struck National Liberal offices and barracks throughout the Christian region, the Safra Marine resort north of Jounieh among them, under strict orders to spare Camille and Dany Chamoun and their families. That evening he proposed merging the militias into the Lebanese Forces under his command; Dany Chamoun left for exile the next day. Estimates of the dead range from about 70 (Ménargues) to 150-200, mostly civilians (Traboulsi; de Clerck and Malsagne give about 150, including 83 Tigers). Ménargues says Bashir code-named the operation 'Altalena'.

Hanf: Dany Chamoun left politics, but his father Camille, badly shaken by the loss of his party's militia, put the Lebanese Front's political unity first and remained its chairman.

In Ménargues's account Damascus rejected Takieddine Solh, finding him too lukewarm about Lebanese–Syrian friendship, and offered three names instead, Selim Hoss's among them.

Syrian troops guarded Riad Taha's and al-Lawzi's funerals, Fisk notes; the government condemned both killings but claimed not to know the culprits. Fisk counts both among journalists who crossed Syria.

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.