command of the 4th Reserve Bn on his return from Egypt (see above), was appointed to command 1st Reserve Bn, London Rgt. Interwar The battalion reformed in the renamed Territorial Army on 7 February 1920. The London Regiment having been abolished in 1916, its battalions became independent regiments affiliated to their former Regular regiments. Thus the 4th Londons reformed as 4th City of London Regiment (Royal Fusiliers), once again in 1st London Brigade. In the coal strike of April 1921 a Defence Force was formed, with one unit being raised at the 4th Londons' HQ, joined by some members of the regiment. This lasted for three months during the political crisis. In 1935 the increasing need for anti-aircraft (AA) defence, particularly for London, was addressed by converting the 47th (2nd London) Division into the 1st Anti-Aircraft Division. A number of London battalions were also converted to the AA role, the 4th Londons being transferred to the Royal Artillery (RA) as an AA artillery unit on 15 December 1935, the 60th (City of London) AA Brigade, RA (TA), with HQ and 168th, 169th, and later 194th AA Batteries relocated to Artillery House, Bromley Road, Catford, in South East London. The unit formed part of 27th (Home Counties) Anti-Aircraft Group in 1st AA Division. Unlike some of the other the units converted to the AA role, the 4th Londons lost their cap badge and adopted the RA badge. In 1939 the RA adopted the designation 'regiment' in place of 'brigade', and the AA formations became 'brigades' rather than 'groups', thus 60th (City of London) AA Regiment formed part of 27th (Home Counties) AA Brigade. World War II Mobilisation The TA's AA units were mobilised on 23 September 1938 during the Munich Crisis, with units manning their emergency positions within 24 hours, even though many did not yet have their full complement of men or equipment. The emergency lasted three weeks, and they were stood down on 13 October. In February 1939 the existing AA defences came under the control of a new Anti-Aircraft Command. In June a partial mobilisation of TA units was begun in a process known as 'couverture', whereby each AA unit did a month's tour of duty in rotation to man selected AA and searchlight positions. On 24 August, ahead of the declaration of war, AA Command was fully mobilised at its war stations. 60th AA Regiment mobilised at