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.

Hanf puts the cabinet's formation at the end of June and its announcement some two weeks before the 15 July confidence vote (83 for, none against, 16 Jumblatt supporters abstaining); Traboulsi's chronology gives 6 July. Neither the Kataeb nor Jumblatt was included. A cease-fire followed, which Traboulsi says was reached with Syrian mediators' help.

On 11 March Brigadier-General Aziz al-Ahdab, Beirut garrison commander (retired, says Traboulsi), seized the television station, named himself interim military governor and called for Frangieh's resignation and an early election. Few troops stood behind him and Syria opposed him: on 15 March PLA and Saiqa units under Syrian control blocked his men and Khatib's Lebanese Arab Army on their way to Baabda. Backed by Chamoun, Gemayel and President Assad, Frangieh refused to go.

The deputies' petition demanding Frangieh's resignation is dated 11 March in Traboulsi's chronology and 13 March by de Clerck and Malsagne; Picard and Traboulsi's chronology count 68 signatures out of 99, Traboulsi's narrative 69. On 15 March Syrian-controlled PLA and Saiqa units halted a march on the Baabda palace by the Lebanese Arab Army and al-Ahdab's followers. Within days Khatib's force grew to a few thousand men and held most of the army's heavy weapons.

Mourabitoun and Palestinian fighters, backed by Lebanese Arab Army artillery, took the 24-storey Holiday Inn after a fight waged floor by floor, day and night, from 20 to 22 March 1976 (Traboulsi dates the fall to 22 March). The Kataeb withdrew to the Fattal building near the port. The five-month Battle of the Hotels was over, and Beirut was split along the Green Line.

Hanf traces the line that went on dividing the city along the Damascus road and across Martyrs Square to the harbour. It was set once the Kataeb, losing the Holiday Inn, had no positions left in West Beirut.

Historians date the entry of Syrian regular troops to 1 June 1976 (Ménargues gives 9 June). President Assad announced it in the presence of the visiting Soviet Prime Minister Kosygin, citing appeals from the Akkar villages of Qubayat and Andaqit, besieged since January and attacked by the Lebanese Arab Army on 27 May. Columns moved towards Akkar and Tripoli, Zahleh and the Bekaa, and Sidon by way of Jezzine. Estimates of the force range from 6,000 men at the start (with 260 armoured vehicles, according to Ménargues) to 12,000-15,000 within weeks, with 250-300 tanks (de Clerck and Malsagne).

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.

Picard (2016) dates to 9 June 1976 the Arab League Council resolution, taken in Cairo, that created an Arab peace force. Hanf has some 2,000 Sudanese arriving first, then Libyans; Picard (2002) says Tripoli sent 500 men in June.

Fisk reports that the bodies of Ambassador Francis Meloy, his economic counsellor Robert Waring and their Lebanese driver, abducted near the Museum crossing, were found that evening at Ramlet al-Baida, and that Arafat, once sure of the three Palestinians responsible, sent them to Tyre. De Clerck and Malsagne judge that the murders ended American efforts at a settlement through the Lebanese parties.

Barely a tenth of American and British residents accepted the evacuation, Fisk writes. The British went by road, the PLO escorting them through West Beirut and a Libyan officer on to the Syrian lines; a day later a US landing craft took evacuees off from a PLO-guarded bathing club on the Corniche.

Sudan supplied the Arab peace force's first contingent, some 2,000 men, and Libya the next (Hanf).

Yara El Khoury dates the start of the final offensive on Jisr al-Basha and Tal al-Za'tar to 22 June 1976, and Hanf's account (Jisr al-Basha stormed eight days after the first assault, on 1 July) points to the same week. The camps had been blockaded since January. Hanf says Chamoun's Tigers and Christian units of the army led the attack, the Kataeb joining later; a joint command of Bashir Gemayel (Kataeb), Dany Chamoun and Nabil Karam (NLP), Fawzi Mahfouz (Tanzim) and Etienne Saqr (Guardians of the Cedar) coordinated it (de Clerck and Malsagne).

Hanf dates Lebanese Front forces' capture of the Jisr al-Basha camp to this day; de Clerck and Malsagne give 29 June, Picard August.

Hanf writes that once Jisr al-Pasha fell on 1 July the Palestinians struck in the north, taking coastal Chekka from Tripoli by way of the Koura, with massacres, looting and arson. A Lebanese Front counter-attack with army tanks reached Tripoli's outskirts.

Ménargues has William Hawi shot by a Palestinian sniper in June 1976, at the end of the Tal al-Za'tar siege; Traboulsi places it during the siege. Bashir Gemayel succeeded him as Kataeb militia chief.

Jumblatt was ambushed near a Syrian checkpoint of the Arab Deterrent Force; Fisk places it on the mountain road near Baaqlin. Most historians give 16 March 1977 (Traboulsi, de Clerck and Malsagne, the Confluences authors, and Hanf on one page); Hanf elsewhere and Ménargues give 17 March, which Ménargues ties to the burial. His son Walid took over, and Christians were killed in reprisal in Chouf villages. Hanf writes that most politicians, Muslims above all, took the murder as a warning against defying Syria openly, and that Jumblatt had attacked the Syrian presence in speech and print, in Lebanon and abroad.

The force is usually called the Arab Deterrent Force (ADF) in English.

The bombing came the evening the government chose a new army commander, a change arranged by Boutros, who held foreign affairs and defence, and regarded by the Christian parties as cause for war.

Muslim leaders accused Hanna Saïd, commander since September 1975, of leniency towards the Lebanese Front (Traboulsi: of closeness to the dissident troops in the south). His replacement, Victor Khoury, a Constitutional Bloc sympathiser committed to Christian-Muslim coexistence, ran the army and its rebuilding from March 1977 to December 1982.