Wikipedia:The result is a precarious stability, and considering that its present king is married to a woman whose family is from Shechem, when their son rules, if the kingdom lasts that long, there will be what's known as a "Palestinian" sic king.
With the Great Arab Revolt in 1916 and the consequent British invasion, the area came under Occupied Enemy Territory Administration in 1917 and with the British mandate of Transjordan in early 1920s, it became the Emirate of Transjordan under the Hashemite Emir. In 1946, independent Hashemite Kingdom of Jordan was formed and shortly admitted to the United Nations and the Arab League. In 1948, Jordan fought with the newly born state of Israel over lands of former Mandatory Palestine, effectively gaining control of the West Bank and annexing it with its Palestinian population.
There are those Israelis and Jews who want Jordan to be called "Palestine," sic, but I'm not among them. I consider it a very dangerous mistake. That's because it gives recognition to the faux people and their faux culture and fictional history.
For quite a few years, Israel has done its best to keep a peace with Jordan. For quite a few years after the 1967 Six Days War, the Israeli movers and shakers were convinced that Jordan would come begging for peace with Israel in exchange for the so-called "west bank," but that never happened. Jordan wasn't interested in fully annexing Judea, Samaria and the Jordan Valley and providing it with modern infrastructure. During the nineteen years of Jordanian occupation of the areas, there had been no development.
When Israel took over after the Six Days War, it discovered a totally backwards area. Even when we moved to Shiloh in 1981, and our phones were via the nearby Turmus Aiya village, the phones had local operators like in the very early twentieth century. Every night the villages went dark about 10pm, because they turned off their generators. Piped water and sewer systems were also built by Israel.
Jordan is in many ways between a a rock and a hard place. To stay viable, it needs to pacify the terrorists without allowing them power and stay western enough to get lots of foreign aid.
Even though it allows Israelis and Jews to tour, there is a lot of tension, and many Jews do not let people there know they are Jewish.
Remember that in 1967 Jordan did join with Syria and Egypt in a war to annihilate Israel. There still are influential Jordanians who want us destroyed.
Jordanian MP Calls for Terrorism Against ‘Filthy Jews’
My gut feeling is that the decision-makers actually want Israel to stay. That's not because they want a Jewish State, but because they can encourage the Hamas and Fatah Arab terrorists to attack Israel rather than attacking Jordan. For them we are the "buffer zone." That doesn't make Jordan a reliable ally or an ally at all. But it also doesn't make Jordan a very dangerous enemy.