Key Facts
- British war declaration on Ottomans
- 5 November 1914
- Ottoman war declaration
- 11 November 1914
- Ottoman attack repelled
- November 1914
- Last Ottoman surrender
- March 1919
- Key strategic asset
- Port of Aden, waystation to Suez Canal
Strategic Narrative Overview
At the outbreak of hostilities, the British defence of the Aden Protectorate rested primarily on the Aden Brigade, a formation of the British Indian Army. In November 1914, Ottoman forces launched an attack from Yemen against Aden. The Aden Brigade successfully drove off the assault. Ottoman forces retained a presence in the surrounding region, and low-level operations continued for several years without any major breakthrough by either side.
01 / The Origins
Following Britain's declaration of war on the Ottoman Empire on 5 November 1914, the Ottomans responded with their own declaration on 11 November. Seeking to exploit regional alliances, the Ottomans planned an invasion of the British Aden Protectorate in coordination with local Arab tribes. Aden's importance as a maritime waystation between Asia and the Suez Canal made it a strategically valuable target for Ottoman forces assembled in Yemen and on the Cheikh Saïd peninsula.
03 / The Outcome
The campaign ended without a formal decisive engagement. The last Ottoman troops in the region surrendered in March 1919, after the broader conclusion of World War I and the armistice of Mudros in October 1918. Britain retained control of Aden and its protectorate, preserving the strategic shipping route through the Red Sea and the Suez Canal that had been the central object of the campaign.
Belligerents & Mobilization Analysis
Side A
2 belligerents
Side B
1 belligerent
Kinetic Engagement Axis
Scroll horizontally to view full axis. Events plotted relatively.