Yes, what
BadBurger
said is accurate.
Here's some background on when the Palestinians attempted to assassinate the king of Jordan and subsequent events:
en.wikipedia.org
During the 1967
Six-Day War,
Israel militarily occupied what had been the
Jordanian-annexed West Bank. Following this development, the
Palestinian fedayeen relocated to Jordan and stepped up their attacks on Israel and the newly
Israeli-occupied territories. Tensions began when an
Israeli reprisal operation took place in Jordan in 1968, developing into the full-scale
Battle of Karameh. Within the
Arab world, the perceived joint victory of Jordan and the
Palestinians against Israeli troops led to a surge in support for the fedayeen in Jordan. Drawing in both new recruits and financial aid, the PLO's strength in Jordan grew rapidly, and by the beginning of 1970, groups within the PLO had begun calling for the overthrow of Jordan's
Hashemite monarchy.
Acting as a state within a state, the fedayeen openly disregarded Jordanian laws and regulations. On two occasions, they attempted to assassinate Hussein, leading to violent confrontations with the
Jordanian Armed Forces by June 1970. Hussein wanted to oust them from the country by force, but had been hesitant to strike; he feared that his enemies would leverage such an offensive by equating the Palestinian fighters with civilians. Continued PLO activities in Jordan culminated in the
Dawson's Field hijackings of 6 September 1970, when the
Popular Front for the Liberation of Palestine (PFLP) seized three civilian passenger flights and forced their landing in the Jordanian city of
Zarqa, where they took foreign nationals as hostages and later blew up the planes in front of journalists from around the world. Hussein saw this as the last straw, and ordered the Jordanian Army to take action.
[10]
On 17 September 1970, the Jordanian Army surrounded all cities with a significant PLO presence, including
Amman and
Irbid, and began shelling
Palestinian refugee camps, where the fedayeen were operating out of. The next day, 10,000 Syrian troops bearing PLA markings began an invasion by advancing towards Irbid, which the fedayeen had occupied and declared to be a "liberated" city. On 22 September, the Syrians withdrew from Irbid after suffering heavy losses to a coordinated aerial–ground offensive by the Jordanians. Mounting pressure from other Arab countries, such as
Iraq, led Hussein to halt his offensive. On 13 October, he signed an agreement with Arafat to regulate the fedayeen's presence in Jordan. However, the Jordanian military attacked again in January 1971, and the Palestinians were driven out of the cities, one by one, until 2,000 fedayeen surrendered after they were encircled during the
Ajlun offensive on 17 July, formally marking the end of the conflict.
[11]
Jordan allowed the fedayeen to relocate to
Lebanon via Syria. Four years later, the fedayeen became involved in the
Lebanese Civil War, which would continue until 1990. The Palestinian
Black September Organization was founded after the conflict to carry out attacks against Jordanian authorities in response to the fedayeen's expulsion; their first notable attack was the assassination of Jordanian prime minister
Wasfi Tal in 1971, as he had commanded parts of the military operations against the fedayeen. The organization then shifted their focus to attacking Israeli targets and later carried out the
Munich massacre, in which they murdered 12 Israeli athletes in a high-profile attack at the
1972 Summer Olympics. Though the events of Black September did not immediately reflect a Jordanian–Palestinian divide, as there were Jordanians and Palestinians on both sides of the conflict, it did pave the way for such a divide to emerge subsequently.
[12]