After Napoleon's exile to Elba both Surrey regiments were disembodied on 24 June 1814. When Napoleon returned to power in 1815, leading to the short Waterloo Campaign, the 1st RSM was called out again on 29 June 1815. At the beginning of the campaign several regular regiments including the Scots Guards were hurriedly brought up to strength with militia volunteers before embarking for Belgium. There is a story that many of the Guardsmen at Waterloo were still clad in Surrey Militia uniforms. The 1st RSM was finally disembodied on 30 April 1816.