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|Part of Mesopotamian Campaign
(World War I)
| British Empire
|Commanders and leaders|
|Frederick Stanley Maude||Khalil Pasha,
Ali İhsan Sâbis
15,000 (Ali Ishan)
|Casualties and losses|
(+ 40,000 sick)
Operations began on March 13, carried forth by 45,000 British troops. On March 19, they conquered Fallujah, a crucial step toward the offensive's goal. The British continued their attacks until April 23, when the town of Samarrah and its railroad fell into their hands.
Although it achieved its aims, the Samarrah offensive cost the British about 18,000 casualties, a considerable price (plus another 40,000 who were taken ill).