The State of Israel

"The irony is that a genuine Palestinian state already exists on the East Bank of the Jordan river. When Britain conquered the Turkish Ottoman Empire at the end of World War I, she allocated five million square miles of Ottoman territory to the local inhabitants. Britain gave 99.8 percent of the conquered land to the Arabs. Only one-fifth of one percent (0.2) of the land was reserved by Britain to establish a Jewish National Home to allow the Jews of the world (who were persecuted in many countries at that time) to return to their (ancestral) Promised Land after two thousand years of exile. The Balfour Declaration of November 2, 1917, declared that the whole of the British Mandate territory, including both sides of the Jordan river, was to be given to the Jews for their homeland."*1 

This is Jewish territory already, the later carving up of Israel to allow the Palestinian enclaves within its borders makes Israel vulnerable and hard to defend, virtually impossible, according to the Pentagon and other military experts. 

"On 15 May 1948, as part of the 1948 Arab–Israeli War, Jordan invaded Palestine together with other Arab states, in which eastern Jerusalem fell into the country's control through several battles including Battle of Jerusalem and Battle of Latrun, the latter was a decisive Jordanian victory. Following the war, Jordan occupied the West Bank and on 24 April 1950 Jordan formally annexed these territories, an act that was regarded as illegal and void by the Arab League. At the Jericho Conference on 1 December 1948, 2,000 Palestinian delegates supported a resolution calling for "the unification of Palestine and Transjordan as a step toward full Arab unity"."*2

The problem nowadays is that Jordan does not want the West Bank any more with the Palestinian Arabs there, since they are the minority in Hashemite Kingdom of the Jordan, and are not popular. 

"The Balfour Declaration was a letter dated 2 November 1917 from the United Kingdom's Foreign Secretary Arthur James Balfour to Walter Rothschild, 2nd Baron Rothschild, a leader of the British Jewish community, for transmission to the Zionist Federation of Great Britain and Ireland."*3

The Balfour Declaration was signed, in geopolitical terms of the day, in order to get America into the WWI on the Russian side, while in social aspect, the Jews were systematically persecuted across Europe with pogroms as a popular escape goat, thus the BD was in part an attempt to save the Jew and the Jewish culture while providing the British-American empire an access to secure Suez canal, a major oil route, and still have presence in the region, which is strategically important. The decision to break up the British Mandate*2 was done by the major superpowers of the day who were busy dealing with the world wars, you can take them to court.

"During the First World War (1914–18), an Arab uprising and the British Empire's Egyptian Expeditionary Force under General Edmund Allenby drove the Turks out of the Levant during the Sinai and Palestine Campaign.[2] The United Kingdom had agreed in the McMahon–Hussein Correspondence that it would honour Arab independence if they revolted against the Ottomans, but the two sides had different interpretations of this agreement, and in the end the UK and France divided up the area under the Sykes–Picot Agreement—an act of betrayal in the eyes of the Arabs. Further confusing the issue was the Balfour Declaration of 1917, promising British support for a Jewish "national home" in Palestine. At the war's end the British and French set up a joint "Occupied Enemy Territory Administration" in what had been Ottoman Syria. The British achieved legitimacy for their continued control by obtaining a mandate from the League of Nations in June 1922. The formal objective of the League of Nations Mandate system was to administer parts of the defunct Ottoman Empire, which had been in control of the Middle East since the 16th century, "until such time as they are able to stand alone."[3] The civil Mandate administration was formalized with the League of Nations' consent in 1923 under the British Mandate for Palestine, which covered two administrative areas. The land west of the Jordan River, known as Palestine, was under direct British administration until 1948. The land east of the Jordan, a semi-autonomous region known as Transjordan, under the rule of the Hashemite family from the Hijaz, gained independence in 1946."*4

_______________________________
*1 - p. 250 Apocalypse -- The Coming Judgment Of The Nations by Grant R. Jeffrey.
*2 - https://en.wikipedia.org/wiki/Jordan
*3 - https://en.wikipedia.org/wiki/Balfour_Declaration
*4 - https://en.wikipedia.org/wiki/Mandatory_Palestine