The Battle of Hanna was fought on 21 January 1916. It was one of the battles on the Mesopotamian front in the World War I. The battle of Hanna was fought between Anglo-Indian and Ottoman forces. The Anglo-Indian forces were led by Fenton Aylmer. He had, at his disposal 10.000 men. The Ottoman Forces were led by Colmar Freiherr von der Goltz and Khalil Pasha. They had 30.000 soldiers at their disposal. The battle ended with the Ottoman victory.
After the Ottoman Empire entered into the World War I, Britain started military actions so they can seize control over the Basra and Shatt al Arab. They wanted to safe British oil interest in these regions.
On 15 December 1915, Ottoman forces surrounded the Anglo-Indian forces at Kut-al-Amara. Anglo-Britain’s had 10.000 men. The commander was Major General Charles Townshend. He asked for help, from General Sir John Nixon. The General sent him 19.000 men. This force consisted of 7th (Meerut) Division and 3rd (Lahore) Division. They suffered two setbacks during January 1916. After these setbacks, they had 10.000 soldiers. However, they were ordered to try to break through the Ottoman lines.
The Battle of Hanna started with a short bombardment on 20 January 1916. It lasted and the next day. After it, the 7th Division attacked the Ottoman lines. The British lost 2.700 people. The Ottoman forces were well defended and they repelled the British attack. Many of the British forces died due to freezing temperatures. Also, their morale was seriously reduced. The Kut-al-Amara garrison had to surrender to the Ottomans on 29 April 1916.