In January 1917, a second mounted division – the Imperial Mounted Division – was formed from the 3rd and 4th Light Horse Brigades and the British 5th and 6th Yeomanry Brigades. A British regular army officer fresh from experience in the Senussi Campaign, Major General Sir H. W. Hodgson, was appointed to command, with an all-British staff. The deliberate mixing of Australian and Imperial troops was done with Chauvel's approval but was contrary to the policy of the Australian Government, which soon registered its displeasure, sending Brigadier General Sir Robert Anderson to Cairo to discuss the matter frankly with Chauvel and his superiors. As a result, the Imperial Mounted Division was renamed the Australian Mounted Division.