The London Regiment was created in 1908 as part of the Haldane Reforms, and consisted entirely of Territorial Force infantry battalions, with no Regular component. Its Poplar and Stepney Rifles Battalion was formed by merging two Volunteer Corps that had previously been affiliated to the Rifle Brigade. Their headquarters were at 66 Tredegar Road, until the drill hall was demolished in the 1960s.
The invasion scare of 1859 led to the creation of the Volunteer Force and huge enthusiasm for joining local Rifle Volunteer Corps. The 26th recruited from customs officers in the London docks and amalgamated with the 9th Tower Hamlets Rifle Volunteers in 1864. It was renumbered 15th in 1881 and became a volunteer Battalion of the Rifle Brigade.
2nd Tower Hamlets Rifle Volunteer Corps
The unit was formed as the 1st Administrative Battalion, Tower Hamlets Rifle Volunteer Corps, in May 1861. It was formed by the grouping of six smaller rifle volunteer corps formed in 1860. The headquarters were established at Truman's Brewery, Spitalfields. It was renumbered 2nd in 1881 and also became a volunteer Battalion of the Rifle Brigade. In 1892 its headquarters were at 237 Whitechapel Road.
Territorial Force
In 1908 on the formation of the Territorial Force the 15th Middlesex and 2nd Tower Hamlets were amalgamated to form the 17th Battalion, London Regiment .
With the outbreak of war in August 1914 the Territorial Force was mobilised. The size of the TF was increased by the formation of duplicates of the pre-war units. The existing battalion became the 1/17th Battalion, and served on the Western Front from 1915-18. A duplicate 2/17th Battalion was formed in August 1914. It was briefly in France before taking part in the Macedonian and Palestinian campaigns. A 3/17th Battalion was formed in 1915. It was a reserve unit and did not serve outside the UK.
Interwar period
In 1926 the battalion was re-designated the 17th London Regiment . In 1937 it became the Tower Hamlets Rifles, Rifle Brigade.
In late May 1941 the Regiment was redesignated again to create the 9th Battalion, The Rifle Brigade. The battalion was part of the 2nd Support Group of the 2nd Armoured Division and then the 200th Guards Brigade until June 1942. The 9th later served with the 4th Armoured Brigade in the 7th Armoured Division and took part in the Battle of Gazala in May 1942 during the North African Campaign before being disbanded in August 1942. The 10th Battalion was formed in 1941 by the redesignation of the 2nd Battalion, Tower Hamlets Rifles and transferred to the 26th Armoured Brigade of the 6th Armoured Division, seeing service with the division in Tunisia in 1943 before, in May 1944, transferring to the 61st Lorried Infantry Brigade, serving alongside the 2nd and 7th Battalions of the Rifle Brigade in the Italian Campaign. However, the battalion was disbanded in late March 1945, with most of the personnel being sent to the 2nd Battalion.
Post War
On the re-establishment of the Territorial Army in 1947 both Tower Hamlets Battalions of the Rifle Brigade were amalgamated to form 656th Light Anti-Aircraft Regiment, Royal Artillery TA, with headquarters at Bow. in 1955 it was amalgamated with the 512th and 568th Light Anti-Aircraft Regiments RA, being reduced to 'P' Battery in the new Regiment. A further amalgamation in 1961 created 300th Light Anti-Aircraft Regiment, RA, subsequently re-designated 300th Light Air Defence Regiment RA . In 1967 it was again amalgamated to form The Greater London Regiment and the Tower Hamlets lineage was lost.