225th Brigade ( United Kingdom ) The 225th Brigade was a Home Defence formation of the British Army in World War I and World War II . It existed under several variations of the 225 Brigade title . World War I . On the outbreak of World War I the Territorial Force ( TF ) immediately mobilised for home defence , but shortly afterwards ( 31 August 1914 ) , its units were authorised to raise 2nd battalions formed from those men who had not volunteered for , or were not fit for , overseas service , together with new volunteers , while the 1st Line went overseas to supplement the Regulars . Early in 1915 the 2nd Line TF battalions were raised to full strength to form new divisions , and began to form Reserve ( 3rd Line ) units to supply drafts . The remaining Home Service men were separated out in May 1915 to form brigades of Coast Defence Battalions ( termed Provisional Battalions from June 1915 ) . 5th Provisional Brigade . 5th Provisional Brigade was formed mainly from details of regiments from East and South - East England , with the following composition : During the autumn of 1915 , 5th Provisional Bde was stationed in Suffolk , attached to 58th ( 2 / 1st London ) Division for administration , and to 1 / 1st Mounted Division for operations . In April 1916 2 / 1st East Anglian ( Essex ) Heavy Battery Royal Garrison Artillery joined the brigade and remained with it until the end of the war . By July 1916 the brigade was under the control of Northern Army of Central Force , with its battalions billeted as follows : 225th Mixed Brigade . The Military Service Act 1916 swept away the Home / Foreign service distinction , and all TF soldiers became liable for overseas service , if medically fit . The Provisional Brigades thus became anomalous , and at the end of 1916 their units became numbered battalions of their parent units . Part of their role was physical conditioning to render men fit for drafting overseas . 4th Provisional Brigade became 225th Mixed Brigade in December 1916 , with its units redesignated as follows : In May 1918 each of the Mixed Brigades was called upon to provide a battalion ( redesignated a Garrison Guard battalion ) to reconstitute the 59th ( 2nd North Midland ) Division , which had been virtually destroyed during the German Spring Offensive . 225th Mixed Bde supplied 15th Essex and immediately raised a new 18th ( Home Service ) Battalion Essex Regiment to take over its coast defence duties . The brigade remained with this composition until the end of the war , after which it was demobilised . World War II . 225th Independent Infantry Brigade ( Home ) . A new 225th Independent Infantry Brigade ( Home ) was formed for service in the United Kingdom on 14 November 1940 . It was commanded by Brigadier J . W . Pendlebury and initially consisted of newly raised infantry battalions from North - West England . The composition of 225th Bde was as follows : Upon formation 225 Bde brigade came under Western Command until 10 February 1941 when it briefly came under command of 54th ( East Anglian ) Infantry Division . On 12 March 1941 , 225 Bde became part of the newly created Northumberland County Division . Northumberland County Division was broken up on 30 November 1941 , when the headquarters of 225th Independent Infantry Brigade ( Home ) was redesignated HQ 35th Army Tank Brigade . Its infantry battalions were converted to the arrmoured role as follows : The 225th Brigade number has never been reactivated . In World War II the brigade number was reactivated for 225th Independent Infantry Brigade ( Home ) . formed for service