sentences:  The battle of Karameh and the subsequent increase in the PLO's strength are considered to have been important catalysts for the 1970 events of the civil war known as Black September, in which the kingdom managed to expel the Palestinian groups to Lebanon after they had started to gain control over Jordan.Later, the United Nations Security Council issued resolution 248 which condemned the Israeli raid on Jordanian territory and the violation of the cease-fire line, it recalled on resolutions 237 which had encouraged Israel to ensure the safety of civilians in military areas.The resolution affirmed that reprisals were not to be tolerated and that repetitions of such violations would have forced the Security Council to take further steps.