 Infantry would have time to move up to relieve the cavalry in the bridgehead, which would then operate behind parts of the front where German infantry were still fighting and protect the main force by extending the flank.To enable this, Haig disbanded the two cavalry corps on 3 March 1916 and distributed the divisions to the armies and the new Reserve Corps.Gough was appointed to command the Reserve Corps in April, which was renamed Reserve Army in June.