A Machine Gun Company of the Machine Gun Corps was attached to each Infantry Brigade and their subsequent Division. An additional Company was attached as a divisional reserve.
|Brigade attached to:||Divisional Reserve|
|Division attached to:||20th (Light) Division|
The 217th M.G. Coy. disembarked from Le Havre on 17 March 1917. It jointed the Division at Carnoy on 23 March 1917.
As a unit of the 20th (Light) Division, it will have taken part in the following battles and engagements.
|14 March to 05 April||German Retreat to the Hindenburg Line [XIV Corps, until 2 p.m., 25 March; then XV Corps, Fourth Army].|
|26 May to 16 June||Actions on the Hindenburg Line [IV Corps, Fifth Army, until 10 a.m., 31 May; then Third Army].|
|BATTLES OF YPRES|
|16 to 18 August||Battle of Langemarck [XIV Corps, Fifth Army].|
|20 to 25 September||Battle of Menin Road Ridge [XIV Corps, Fifth Army].|
|26 to 28 September||Battle of Polygon Wood [XIV Corps, Fifth Army].|
|BATTLE OF CAMBRAI|
|20 and 21 November||The Tank Attack [III Corps, Third Army].|
|23 to 28 November||Capture of Bourlon Wood [III Corps, Third Army].|
|30 November to 02 December||German Counter-Attacks [III Corps, Third Army].|
On 1 March 1918, it was amalgamated with the 59th, 60th and 61st Machine Gun Companies to form No. 20 Battalion, Machine Gun Corps.