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BATTLE // September 12, 1945

Operation Tiderace

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Overview

Operation Tiderace was the codename of the British plan to retake Singapore following the Japanese surrender in 1945. The liberation force was led by Lord Louis Mountbatten, Supreme Allied Commander of South East Asia Command. Tiderace was initiated in coordination with Operation Zipper, which involved the liberation of Malaya.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

Operation Tiderace was the British plan to retake Singapore following Japan's surrender in 1945, executed as part of the broader Allied effort to reassert control over Southeast Asia at the close of World War II. Led by Lord Louis Mountbatten as Supreme Allied Commander of South East Asia Command, the operation was coordinated alongside Operation Zipper, the concurrent liberation of Malaya. The near-total casualty figure recorded for the Japanese force of 77,000—with 76,700 accounted for—reflects the scale of the surrender and disarmament process rather than conventional combat. Tiderace marked the formal restoration of British authority over Singapore, a territory whose fall in 1942 had represented one of the most significant defeats in British imperial history.

Forces & casualties

Troop strength

  • Japan77,000
    medium
  • United Kingdom60,000
    medium

Japan fielded a 1.3 : 1 numerical advantage

Casualties

  • Japan76,700
    medium100% loss rate

Commanders (4)

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6 sibling battles · 6 factions

Last verified June 2026
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