 The regiment sent another cadre to 209th HAA Training Rgt for a new 479 (Mixed) HAA Bty; this was formed on 11 September 1941 but was disbanded on 8 October.In the summer of 1941 the regiment was reorganised.On 20 August 309 HAA Bty left to provide an experienced cadre for a newly-formed 128th HAA Rgt and was replaced in 70th (3rd West Lancs) by 434 HAA Bty, which had been formed on 12 June 1941 at the AA training centre at Oswestry, partly from the personnel of 254 and 259 LAA Btys, which had been disbanded.