The British capture Nasiriyah from the Ottomans during the Mesopotamian campaign.

The Battle of Nasiriyah was a battle in World War I that took place in Nasiriyah, Ottoman Iraq, between British and Ottoman forces in July 1915. It was a pivotal battle in the Mesopotamian campaign of World War I and saw 5,000 British and Indian troops face off against a Turkish garrison of a similar number. British and Indian forces under the command of Lieutenant General Sir George Frederick Gorringe attacked Nasiriyah with the intention of protecting the British stronghold of Basra and destroying a major Turkish supply center in the region. British forces defeated the Turkish forces in Nasiriyah and it became the latest addition to a long string of successes against Ottoman forces in the campaign, coming right after the capture of Amara and the Battle of Qurna.