The Israeli–Palestinian conflict grew out of clashing national movements and colonial-era decisions in the late 19th and early 20th centuries, centered on the same piece of land.

What is the origin of the Israeli–Palestinian conflict?

Late 19th‑century roots

In the late 1800s, modern political Zionism emerged in Europe, calling for a Jewish national homeland in Palestine, then part of the Ottoman Empire. At the same time, Arab nationalism was also rising, including among the Arabic- speaking population of Palestine, who increasingly saw themselves as a distinct community tied to this land.

Jewish immigration to Ottoman Palestine grew in waves, driven by persecution and antisemitism in Europe and Russia, and by the Zionist idea of “return” to the ancestral land. For many local Arab inhabitants—mostly Muslim and Christian peasants and townspeople—this immigration and land purchase process began to feel like a threat to their own control over land and political future.

World War I and British rule

During World War I, the Ottoman Empire collapsed and Britain took control of Palestine. In 1917, the British government issued the Balfour Declaration , promising support for a “national home for the Jewish people” in Palestine, while also saying that existing non‑Jewish communities’ rights would be protected.

After the war, the League of Nations gave Britain the Mandate for Palestine , formalizing British rule. Under this mandate, Britain facilitated increased Jewish immigration and institution-building, which Zionist leaders used to lay the foundations of a future state. At the same time, Britain had also made promises to Arab leaders about independence in parts of the former Ottoman territories, fueling a deep sense of betrayal among Arabs when they saw growing Zionist influence.

Growing tensions in Mandatory Palestine

Between the 1920s and 1930s, Jewish immigration and land purchases expanded the Yishuv (the Jewish community in Palestine) and led to new towns, farms, and institutions. Many Palestinians saw this process not just as migration but as a project to build a separate national home that could marginalize or displace them.

Clashes over land, labor, and political power became more frequent, evolving from local disputes into organized violence. Key moments included:

  • Riots and communal violence in the 1920s and early 1930s.
  • The 1936–1939 Arab Revolt in Palestine, a large uprising against both British rule and Zionist immigration/land policies.

Britain responded with force and with commissions (like the Peel Commission) that proposed partitioning the territory into separate Jewish and Arab states. Most Arab leaders rejected partition, insisting that all of Palestine should become an Arab-majority state, while many Zionist leaders were divided but often open to partition as a step toward statehood.

Partition, 1948 war, and the Nakba

After World War II and the Holocaust, global pressure increased for a Jewish state, while Palestinian Arabs demanded independence and an end to mass Jewish immigration. Unable to manage the escalating conflict, Britain referred the issue to the United Nations, which in 1947 proposed partition : one Jewish state, one Arab state, and a special international status for Jerusalem.

Jewish leaders accepted the UN partition plan in principle, seeing it as international recognition of statehood, while Arab and Palestinian leaders rejected it as unjust, arguing it gave a large share of the land to a minority population. Civil war broke out between Jewish and Arab communities in 1947–1948, even before the British withdrew.

On 14 May 1948, Zionist leaders declared the State of Israel. The next day, armies from neighboring Arab states entered the former mandate territory, starting the 1948 Arab–Israeli War. Israel emerged victorious and controlled more territory than the original UN partition map envisioned.

For Palestinians, this period is remembered as the Nakba (“catastrophe”): around 750,000 Palestinians fled or were expelled from their homes and became refugees, while Egypt took control of Gaza and Jordan took control of the West Bank and East Jerusalem. For Israelis, this was the War of Independence, securing their new state in the face of invasion.

Why the origin still matters today

The core disputes that emerged in this early period remain central:

  • Competing national claims to the same land (Jewish self‑determination vs. Palestinian self‑determination).
  • Status of refugees and their descendants who left or were forced from their homes in 1948 (and later in 1967).
  • Control over territory (especially the West Bank, Gaza, and East Jerusalem) and whether there should be two states, one binational state, or some other arrangement.
  • The legacy of colonial-era British policies and conflicting promises that set communities against each other.

Modern rounds of violence—including wars, uprisings, and the current crisis—are shaped by this long history and by how each side remembers it. Narratives differ sharply: many Israelis emphasize centuries of persecution and the need for a secure Jewish homeland, while many Palestinians emphasize dispossession, occupation, and the right to return or achieve full sovereignty.

Mini multi‑viewpoint snapshot

  • From many Israeli and Zionist narratives, the origin lies in a legitimate national movement for Jewish self‑determination in the ancestral homeland, met with rejection and violence by surrounding Arab societies.
  • From many Palestinian and broader Arab narratives, the origin lies in settler colonialism backed by imperial powers, in which an indigenous population was displaced to make room for another.
  • Many historians point to the intersection of both national movements with British imperial policy: overlapping, conflicting promises and demographic engineering in a small territory produced a zero‑sum struggle.

TL;DR

The origin of the Israeli–Palestinian conflict is not a single event but a process: late 19th‑century Zionist and Arab national movements, British imperial rule and promises, mass Jewish immigration, rising Palestinian fears of dispossession, and the 1947–1949 partition war that created Israel and the Palestinian refugee crisis.

Information gathered from public forums or data available on the internet and portrayed here.