Jordan put it to Israel but good when they refused Israel's offer to return the entire West Bank back to them after the 67 war so they could sacrifice that piece of land to dump their Palestinians on Israel to deal with.
Three quarters of the Arabs who now call themselves Palestinians were absorbed by Jordan. The Arabs decided to attack Israel, not to create a mythical Palestine, but to destroy the Jewish state and divide it between themselves. You think if the Arabs would have succeeded, there would have been a "Palestine"? You need to read up on what some of the Arab leaders said (laughed) about the existence of a Palestinian people. Ha ha ha! The Arabs that did not join the attackers were absorbed by the Israelis and given full rights as citizens, which now comprise of 20% of the Israeli population. The ones that joined their Arab brethern in the failed attempt to "kill all the Jews", well....TOUGH SHIT. Maybe the attacking Arabs who made all those promises to them can now accomodate them. Israel owes them NOTHING.
Jordan has a long and violent history with "Palestinians". The Jordanian plan (since the late 1960's has been to bums-rush their "Palestinian" population into the West Bank--a political cleansing.
The Jordanians continue to despise the Palestinians who once attempted to seize power under Arafat (Black September 1970).
Black September in Jordan - Encyclopedia
History of Palestinians in Jordan and Black September: In Palestinian enclaves and refugee camps in Jordan, the police and army were losing their authority. Uniformed PLO militants openly carried weapons, set up checkpoints and attempted to collect what they called "taxes". During the November 1968 negotiations, a seven-point agreement was reached between King Hussein and Palestinian organizations:
* Members of these organizations were forbidden from walking around cities armed and in uniform
* They were forbidden from stopping civilian vehicles in order to conduct searches
* They were forbidden from competing with the Jordanian Army for recruits
* They were required to carry Jordanian identity papers
* Their vehicles were required to bear Jordanian license plates
*Crimes committed by members of the Palestinian organizations would be investigated by the Jordanian authorities
* Disputes between the Palestinian organizations and the government would be settled by a joint council of representatives of the king and of the PLO.
The PLO, reneging on this agreement, acted like a state within a state in Jordan. Between mid-1968 and the end of 1969, no fewer than five hundred violent clashes occurred between the Palestinian guerrillas and Jordanian security forces. Acts of violence against civilians and kidnappings frequently took place. Chief of the Jordanian royal court (and subsequently a Prime Minister) Zaid al-Rifai claimed that "the fedayeen killed a soldier, beheaded him, and played soccer with his head in the area where he used to live." (Source: Arafat's War by Efraim Karsh, p.28)
Many elements in the PLO extorted money from merchants at gunpoint under the claim that they were donations to the Palestinian cause. Jordanian security forces would typically round them up and send them to the front where they could be more useful to the Palestinian cause. Outbreaks of violence however were continously on the rise. As long as both parties maintained the condition that they would not enter or remain in the capital a large scale crash could have been avoidable.