Israel invaded Lebanon for the same reason every time - to prevent attacks on civilians from Lebanese territory.
https://en.wikipedia.org/wiki/Palestinian_insurgency_in_Sout...
Because of the constant invasion and denial of recognition of the West Bank and Gaza as Palestinian and after decades of pogroms and ethnic cleansing of Palestinian villages.
Because of the constant invasion and denial of recognition of the West Bank and Gaza as Palestinian and after decades of pogroms and ethnic cleansing of Palestinian villages.