Intercommunal conflict in Mandatory Palestine in the context of "Haganah"

Israel, officially the State of Israel, is a country in the Southern Levant region of West Asia. It borders Lebanon to the north, Syria to the northeast, Jordan to the east and Egypt to the southwest. Israel occupies the Palestinian territories of the West Bank in the east and the Gaza Strip in the southwest, as well as the Syrian Golan Heights in the northeast. Israel's western coast lies on the Mediterranean Sea, the southern tip reaches the Red Sea, and the east includes the Earth's lowest point near the Dead Sea. Jerusalem is the government seat and proclaimed capital, while Tel Aviv is Israel's largest urban area and economic centre.

The Land of Israel is synonymous with Palestine or the Holy Land. In antiquity it was home to the Canaanites and later the kingdoms of Israel and Judah. Its location at a continental crossroads brought demographic shifts under various empires. Nineteenth-century European antisemitism fuelled the Zionist movement for a Jewish homeland. Britain endorsed this goal in the 1917 Balfour Declaration and ruled Mandatory Palestine from 1920. Jewish immigration and British policies intensified Arab-Jewish tensions, and the 1947 United Nations (UN) Partition Plan led to a civil war.

Palestine, officially the State of Palestine, is a country in West Asia. It encompasses the Israeli-occupied West Bank, including East Jerusalem, and the Gaza Strip, collectively known as the Palestinian territories. The territories share the vast majority of their borders with Israel, with the West Bank bordering Jordan to the east and the Gaza Strip bordering Egypt to the southwest. It has a total land area of 6,020 square kilometres (2,320 sq mi) while its population exceeds five million. Its proclaimed capital is Jerusalem, while Ramallah serves as its de facto administrative center. Gaza was its largest city prior to evacuations in 2023.

Situated at a continental crossroad, the Palestine region was ruled by various empires and experienced various demographic changes from antiquity to the modern era. It was treading ground for the Nile and Mesopotamian armies and merchants from North Africa, China and India. The region has religious significance. The ongoing Israeli–Palestinian conflict dates back to the rise of the Zionist movement, supported by the United Kingdom during World War I. The war saw Britain occupying Palestine from the Ottoman Empire, where it set up Mandatory Palestine under the auspices of the League of Nations. Increased Jewish immigration led to intercommunal conflict between Jews and Palestinian Arabs, which escalated into a civil war in 1947 after a proposed partitioning by the United Nations was rejected by the Palestinians and other Arab nations.

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.

The 1948 Arab–Israeli War, also known as the First Arab–Israeli War, followed the civil war in Mandatory Palestine as the second and final stage of the 1948 Palestine war. The civil war became a war of separate states with the Israeli Declaration of Independence on 14 May 1948, the end of the British Mandate for Palestine at midnight, and the entry of a military coalition of Arab states into the territory of Mandatory Palestine the following morning. The war formally ended with the 1949 Armistice Agreements which established the Green Line.

Since the 1917 Balfour Declaration and the 1920 creation of the British Mandate of Palestine, and in the context of Zionism and the mass migration of European Jews to Palestine, there had been tension and conflict between Arabs, Jews, and the British in Palestine. The conflict escalated into a civil war 30 November 1947, the day after the United Nations adopted the Partition Plan for Palestine proposing to divide the territory into an Arab state, a Jewish state, and an internationally administered corpus separatum for the cities of Jerusalem and Bethlehem.