On 7 January 1918 56th Bde was ordered to pull out all its guns ready for a move. Despite snowstorms and freezing conditions, 220th Siege Bty got three of its guns out onto the road before the thaw set in. Finally, all the battery's guns were withdrawn to the Siege Park on 10 January. After a week's rest the brigade entrained for the south, travelling by a circuitous route to Longueau, near Amiens afterwards moving by road to join III Corps Heavy Artillery (HA) at Frières-Faillouël, close to the Hindenburg Line, with 220th Siege Bty billeted in reserve by the end of the month. The order to 'Prepare for battle' came on 28 February and 220th Siege Bty pulled its four guns into position at Clastres, under the tactical direction of 66th Bde, RGA. These guns were ready for action on 1 March,
