51st Infantry Division – (Major-General V. M. Fortune)

152nd Infantry Brigade
2nd Battalion Seaforth Highlanders
4th Battalion Seaforth Highlanders
4th Battalion Queen’s Own Cameron Highlanders
152nd Infantry Brigade Antitank Company

153rd Infantry Brigade
4th Battalion Black Watch
1st Battalion Gordon Highlanders
5th Battalion Gordon Highlanders
153rd Infantry Brigade Antitank Company

154th Infantry Brigade
1st Battalion Black Watch
7th Battalion Argyll & Sutherland Highlanders
8th Battalion Argyll & Sutherland Highlanders
154th Infantry Brigade Antitank Company

HQ Royal Artillery
17th Field Regiment, RA
23rd Field Regiment, RA
75th Field Regiment, RA
51st Anti-Tank Regiment, RA

HQ Royal Engineers
26th Field Company, RE
236th Field Company, RE
237th Field Company, RE
239th Field Park Company, RE

Units attached to the 51st Infantry Division in April 1940 to form Saar Force
1st Lothians and Border Horse [Divisional Cavalry] [From GHQ Troops]
1st Regiment Royal Horse Artillery (less one battery) [From GHQ Troops]
97th Field Regiment (one battery), RA [From III Corps]
51st Medium Regiment, RA [From III Corps]
213th Field Company, RE [From III Corps]
7th Battalion Royal Northumberland Fusiliers [Machine Gun] [From III Corps]
1st Battalion Princess Louise’s Kensington Regiment, The Middlesex Regiment [Machine Gun] [From III Corps]
7th Battalion Royal Norfolk Regiment [Infantry Sappers] [From GHQ Troops]
6th Battalion Royal Scots Fusiliers [Infantry Sappers] [From GHQ Troops]