The Israeli–Palestinian conflict is an ongoing military and political conflict about land and self-determination within the territory of the former Mandatory Palestine. Key aspects of the conflict include the Israeli occupation of the West Bank and Gaza Strip, the status of Jerusalem, Israeli settlements, borders, security, water rights, the permit regime in the West Bank and in the Gaza Strip, Palestinian freedom of movement, and the Palestinian right of return.

The conflict has its origins in the rise of Zionism in the late 19th century in Europe, a movement which aimed to establish a Jewish state through the colonization of Palestine, synchronously with the first arrival of Jewish settlers to Ottoman Palestine in 1882. The Zionist movement garnered the support of an imperial power in the 1917 Balfour Declaration issued by Britain, which promised to support the creation of a "Jewish homeland" in Palestine. Following British occupation of the formerly Ottoman region during World War I, Mandatory Palestine was established as a British mandate. Increasing Jewish immigration led to tensions between Jews and Arabs which grew into intercommunal conflict. In 1936, an Arab revolt erupted demanding independence and an end to British support for Zionism, which was suppressed by the British. Eventually tensions led to the United Nations adopting a partition plan in 1947, triggering a civil war.

During the ensuing 1948 Palestine war, more than half of the mandate's predominantly Palestinian Arab population fled or were expelled by Israeli forces. By the end of the war, Israel was established on most of the former mandate's territory, and the Gaza Strip and the West Bank were controlled by Egypt and Jordan respectively.