1) Britain took control of the area known as Palestine after the ruler of that part of the Middle East, the Ottoman Empire, was defeated in World War One.2) The land was inhabited by a Jewish minority and Arab majority.
3) Tensions between the two peoples grew when the international community gave Britain the task of establishing a “national home” in Palestine for Jewish people.
4) For Jews it was their ancestral home, but Palestinian Arabs also claimed the land and opposed the move.
5) Between the 1920s and 1940s, the number of Jews arriving there grew, with many fleeing from persecution in Europe and seeking a homeland after the Holocaust of World War Two.
6) Violence between Jews and Arabs, and against British rule, also grew.
7) In 1947, the UN voted for Palestine to be split into separate Jewish and Arab states, with Jerusalem becoming an international city. That plan was accepted by Jewish leaders but rejected by the Arab side and never implemented.
8) That plan was accepted by Jewish leaders but rejected by the Arab side and never implemented.
9) In 1948, unable to solve the problem, British rulers left, and Jewish leaders declared the creation of the state of Israel.
10) Many Palestinians objected, and a war followed. Troops from neighboring Arab countries invaded.
11) Hundreds of thousands of Palestinians fled or were forced out of their homes in what they call Al Nakba, or the “Catastrophe”
12) By the time the fighting ended in a ceasefire the following year, Israel controlled most of the territory.
13) Jordan occupied land which became known as the West Bank, and Egypt occupied Gaza.
14) Jerusalem was divided between Israeli forces in the West, and Jordanian forces in the East.
15) Because there was never a peace agreement – with each side blaming the other – there were more wars and fighting in the following decades.
16) In another war in 1967, Israel occupied East Jerusalem and the West Bank, as well as most of the Syrian Golan Heights, Gaza and the Egyptian Sinai Peninsula.
17) Most Palestinian refugees and their descendants live in Gaza and the West Bank, as well as in neighboring Jordan, Syria and Lebanon.
18) Neither they nor their descendants have been allowed by Israel to return to their homes – Israel says this would overwhelm the country and threaten its existence as a Jewish state.
19) Israel still occupies the West Bank, and although it pulled out of Gaza the UN still regards that piece of land as occupied territory.
20) Israel claims the whole of Jerusalem as its capital, while the Palestinians claim East Jerusalem as the capital of a future Palestinian state. The US is one of only a handful of countries to recognize the city as Israel’s capital.
21) In the past 50 years Israel has built settlements in these areas, where more than 600,000 Jews now live. Settlements are held to be illegal under international law – that is the position of the UN Security Council and the UK government, among others – although Israel rejects this.
22) Tensions are often high between Israel and Palestinians living in East Jerusalem, Gaza and the West Bank.
23) Gaza is ruled by the Palestinian militant group Hamas, which has fought Israel many times. Israel and Egypt tightly control Gaza’s borders to stop weapons getting to Hamas.
24) Palestinians in Gaza and the West Bank say they are suffering because of Israeli actions and restrictions. Israel says it is only acting to protect itself from Palestinian violence. The threatened eviction of some Palestinian families in East Jerusalem has also caused rising anger
What are the main problems?
There are a number of issues which Israel and the Palestinians cannot agree on.
What should happen to Palestinian refugees
Whether Jewish settlements in the occupied West Bank should stay or be removed
Whether the two sides should share Jerusalem
And – perhaps most tricky of all – whether a Palestinian state should be created alongside Israel
Peace talks have been taking place on and off for more than 25 years, but so far have not solved the conflict.