What Is 1947-48 Civil War in Palestine

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Last updated: April 14, 2026

Quick Answer: The 1947–1948 Civil War in Palestine was a conflict between Jewish and Arab communities following the UN’s 1947 partition plan; it began in November 1947 and ended in May 1948 with Israel's declaration of independence.

Key Facts

The war began on November 30, 1947, one day after the UN passed Resolution 181.
Approximately 12,000 people were killed between 1947 and mid-1948.
The Haganah, Irgun, and Lehi were the main Jewish paramilitary forces involved.
The Arab Liberation Army and local militias represented Arab forces.
By May 1948, over 300,000 Palestinian Arabs had fled or been expelled from their homes.

Overview

The 1947–1948 Civil War in Palestine was a violent conflict between Jewish and Arab communities in the British Mandate of Palestine, triggered by the United Nations' adoption of a partition plan. It marked the first phase of what later became the 1948 Arab–Israeli War, transitioning from intercommunal violence to full-scale war after Israel's declaration of independence.

The conflict followed decades of rising tensions over Jewish immigration and land purchases under British rule. After World War II and the Holocaust, international support grew for a Jewish state, culminating in a UN-backed plan to divide Palestine into separate Jewish and Arab states, with Jerusalem under international administration.

UN Resolution 181, passed on November 29, 1947, proposed dividing Palestine into two states, sparking immediate unrest and armed clashes.
The violence intensified rapidly, with Jewish militias like the Haganah launching offensives to secure territory outlined in the partition plan.
Arab leaders rejected the plan, arguing it violated the rights of the majority Arab population and launched attacks on Jewish communities and transport routes.
Key battles occurred in cities like Jerusalem, Haifa, and Jaffa, where mixed populations led to brutal urban fighting and mass displacement.
By April 1948, the Haganah shifted from defense to large-scale operations, including Operation Nachshon, aimed at opening roads to besieged Jerusalem.

How It Works

The civil war functioned as a decentralized but coordinated series of military actions by Jewish and Arab militias, each pursuing strategic control ahead of the British withdrawal. Unlike conventional wars, this phase involved urban combat, sabotage, and population displacement as key tactics.

UN Partition Plan: Proposed in 1947, it allocated 56% of Palestine to the Jewish state despite Jews owning about 7% of the land and comprising one-third of the population.
Haganah: The main Jewish paramilitary force, with around 30,000 trained fighters by early 1948, used coordinated operations to secure territory.
Irgun and Lehi: Smaller, more radical Jewish groups that conducted high-profile attacks, such as the Deir Yassin massacre in April 1948, which intensified fear and flight.
Arab Liberation Army: Comprised volunteers from Arab countries and local fighters, it lacked unified command and struggled with logistics and coordination.
British Role: The British Mandate authorities remained officially neutral but gradually withdrew, ending on May 15, 1948, creating a power vacuum.
Population Displacement: An estimated 300,000 to 350,000 Palestinian Arabs fled or were expelled by mid-1948 due to combat, fear, and strategic expulsions.

Comparison at a Glance

Below is a comparison of key aspects between Jewish and Arab forces during the 1947–1948 civil war phase:

Aspect	Jewish Forces	Arab Forces
Primary Groups	Haganah, Irgun, Lehi	Arab Liberation Army, local militias
Estimated Strength (1948)	30,000–35,000 fighters	10,000–15,000 volunteers
Command Structure	Centralized under Haganah high command	Decentralized, limited coordination
External Support	Global Jewish diaspora funding and arms	Volunteers from Arab states, limited arms
Key Strategy	Securing territory, controlling roads	Disrupting Jewish settlements and supply lines

This table highlights the asymmetry in organization and resources. Jewish forces benefited from internal cohesion and access to arms, while Arab forces were fragmented and under-resourced, affecting their ability to counter coordinated offensives.

Why It Matters

The 1947–1948 Civil War in Palestine set the stage for the broader Arab–Israeli conflict and shaped the demographic and political landscape of the region. Its outcomes continue to influence Middle Eastern geopolitics and refugee issues today.

The war resulted in the establishment of Israel on May 14, 1948, followed by invasion from neighboring Arab states, marking the start of the 1948 Arab–Israeli War.
It led to the creation of the Palestinian refugee crisis, with over 700,000 displaced by the end of 1949, a core issue in peace talks ever since.
The conflict demonstrated the failure of international partition plans without local consensus, influencing later diplomatic efforts.
Military successes by Jewish forces during this period allowed Israel to control territory beyond the UN partition borders.
Events like the Deir Yassin massacre became symbolic in Palestinian collective memory and fueled long-term mistrust.
The war laid the foundation for Israel’s military doctrine and national identity, while shaping Arab narratives of loss and resistance.

Understanding this civil war is essential to grasping the roots of one of the world’s most enduring conflicts. Its legacy persists in ongoing disputes over land, sovereignty, and the right of return for displaced Palestinians.