The Lebanese war · 111101 entry in the original chronology
Yarzeh reactivated 'The Maritime Operations Room:' instructed to watch the navigation movement in the Lebanese waters and to prevent boats from entering the illegal harbours of the country. Sami Khatib (chief commander of the army in the Western sector) closed the access to the port in retort to what was considered a blockade.
What the books addHanf puts Aoun's order to blockade Khalde, Jiyeh and Ouzai, the ports held by the PSP and Amal, on 3 March; de Clerck and Malsagne place the closure of the illegal ports on 6 March. Syria had warned Aoun against acting beyond 'his' area. Beirut and Jounieh harbours and the airport then all shut, Syrian and PSP guns shelling the first two, the army the third.
Other date in the books: Friday, 3 March 1989