Both the Allied Powers and the Central Powers used camels during the First World War. British Empire raised the famous Imperial Camel Corps in 1916 to help with war efforts, and on the other side, the Ottoman Empire maintained camel companies as part of its Yemen and Hejaz Corps during the war.
Camels were mostly used in WW1 in desert areas to help fight against the German allied forces. Their size and flexibility made them perfect for transport and patrolling of the front.
Because of their ability to carry heavy loads and survive long without water, camels were used to carry food, water, ammunition, medical supplies, and wounded men during WW1. As part of camel cavalry assault troops, they would attack and stampede the enemies, and be a companion to soldiers and boost their morale.