1970s revisited
AUB students, greatly polarized between the pro-Frangiye and Phalangist Rabita students and the pro-PLO Leftist students, clashed on campus, following an Israeli hit squad which landed in Beirut, made its way to the heart of the city, and assassinated three leading members of the PLO, (Kamal Adwan, Mohammad al-Najjar and Kamal Nasser), in their beds, and was able to retreat practically unharmed. Three days later, the funeral of the three slain leaders turned into a public protest against the failure of the Lebanese army and security authorities to respond to the Israeli raid.
After Rabah, M. G., & American University of Beirut. Faculty of Arts and Sciences. Department of History and Archaeology. (2007). The student movement at the American University of Beirut. p:92
[Rabita installed] megaphones installed on the premises of the security office right by the Main Gate denounced the Palestinians as saboteurs. A skirmish followed at the Main Gate between the Rabita and a handful of pro-Palestinian students who managed to break through the Rabita blockade and get on campus. But the real fighting started when the Rabita advanced to attack the Palestinian boarding students who were having breakfast in the cafeteria. What aggravated the situation at this point was the Rabita’s use of slingshots and glass marbles in their attack, which the Palestinian students successfully repelled through the use of food trays available to them in the cafeteria and other defense means at their disposal. "
Rabah, M. G., & American University of Beirut. Faculty of Arts and Sciences. Department of History and Archaeology. (2007). The student movement at the American University of Beirut. p:92