Various clashes between the fedayeen and the army occurred between the years 1968 – 1970 . The situation climaxed in September 1970 , when several attempts to assassinate king Hussein failed . On September 7 , 1970 , in the series of Dawson 's Field hijackings , three planes were hijacked by PFLP : a SwissAir and a TWA that were landed in Azraq area and a Pan Am that was landed in Cairo . Then on September 9 , a BOAC flight from Bahrain was also hijacked to Zarqa . The PFLP announced that the hijackings were intended " to pay special attention to the Palestinian problem " . After all hostages were removed , the planes were dramatically blown up in front of TV cameras
Dawson 's Field hijackings
Dawson's Field hijackings
Palestinian political violence