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Historical Conflict

Operation Nachshon

Operation Nachshon was the first major Haganah offensive, opening the Tel Aviv–Jerusalem road and marking the shift from defense to large-scale attack in the 1948 civil war.

Duration & Scope

1948 ongoing

< 1 year

Key Facts

Dates
5–16 April 1948
Duration
11 days
Objective
Open the Tel Aviv–Jerusalem road to relieve besieged Jerusalem
Part of
Plan Dalet
Units involved
Haganah Givati Brigade and Palmach (later Harel Brigade)

Strategic Narrative Overview

Conducted from 5 to 16 April 1948, the operation deployed the Givati Brigade and Palmach units — later reorganized as the Harel Brigade — to seize villages along the Jerusalem corridor and force open the road. The operation included the controversial Deir Yassin massacre on 9 April. Although the road was temporarily opened and supplies reached Jerusalem, full control proved elusive, leading to subsequent failed attempts to hold the route.

01 / The Origins

During the 1947–1948 civil war in Mandatory Palestine, Palestinian Arab forces blockaded the road connecting Tel Aviv to Jerusalem, cutting off supplies and arms to the Jewish community there. The Haganah, needing to break the siege, launched Operation Nachshon as the first major offensive action under Plan Dalet, a strategic shift from defensive posture to active seizure of territory and road corridors vital to Jewish population centers.

03 / The Outcome

The operation succeeded in briefly relieving Jerusalem but could not permanently secure the road. Ongoing Arab resistance led the Haganah to construct the Burma Road, a makeshift bypass route, as an alternative supply line. The participating units reorganized into the Harel Brigade. The operation established the template for Plan Dalet's subsequent offensive phases and marked a decisive escalation in the scale of Haganah military activity.

Belligerents & Mobilization Analysis

Side A

1 belligerent

Haganah (Givati Brigade and Palmach/Harel Brigade)

Side B

1 belligerent

Palestinian Arab forces
Outcome
Road temporarily opened; permanent control not achieved; Burma Road later constructed as bypass

Kinetic Engagement Axis

Major engagements timeline (1948–present)Timeline of major military engagements plotted chronologically.1948present1948Deir Yassin mass…Allied

Scroll horizontally to view full axis. Events plotted relatively.

Side A victorySide B victoryInconclusiveDecisive / turning point

Location

Map of Jerusalem, Mandatory PalestineMap of Jerusalem, Mandatory PalestineJerusalem, Mandatory Palestine