The occupation of the Jordan Valley by the Egyptian Expeditionary Force (EEF) began in February 1918 during the Sinai and Palestine Campaign of World War I. After the Capture of Jericho in February the Auckland Mounted Rifle Regiment began patrolling an area of the Jordan Valley near Jericho at the base of the road from Jerusalem. Towards the end of March the First Transjordan attack on Amman and the First Battle of Amman were launched from the Jordan Valley followed a few weeks later by the equally unsuccessful Second Transjordan attack on Shunet Nimrin and Es Salt at the end of April. During this time the occupation of the Jordan was fully established and continued through the summer of 1918. The occupation ended in September with the Battle of Megiddo which consisted of the Battle of Sharon and the Battle of Nablus. The Third Transjordan attack and Second Battle of Amman were fought as part of the Battle of Nablus.