(including Glasgow and the Clyde) while 3 AA Division retained responsibility for eastern Scotland. The only effect of this on 52 LAA Bde was that 57th (Glasgow) S/L Rgt transferred to 12 AA Division. When the Blitz ended in May 1941 the Edinburgh area had escaped relatively lightly, though the nearby Rosyth Dockyard had been a target. Mid-war Other than new batteries being formed, the composition of the brigade did not change for the rest of the year: 51st (Highland) S/L Rgt 319, 320, 404 Btys 52nd (Queen's Edinburgh) S/L Rgt 406, 407, 531 Btys 56th (Cameronians) S/L Rgt 417, 418, 419, 535 Btys By early 1942, AA Command had more than enough S/L units, but was still seriously short of light anti-aircraft (LAA) gun units, and began a programme of converting S/L units (which also had the benefit of saving manpower): 51 S/L Rgt – left and became 124 (Highland) LAA Regiment in February 1942 52 S/L Rgt – became 130 (Queen's Edinburgh, Royal Scots) LAA Regiment in March 1942 56 S/L Rgt – left January 1942 and became 125th (Cameronians) LAA Regiment in February Order of Battle 1942 As a result of these changes the brigade was no longer a S/L formation and now consisted mainly of LAA gun units with a few Heavy AA (HAA). 147th HAA Rgt – newly formed February 1942 317 HAA Bty – attached to School of Artillery; left July 1942 358 HAA Bty – joined July 1942 360 HAA Bty – joined from 114 HAA Rgt May 1942 403 HAA Bty – joined from 123rd HAA Rgt July 1942 417 HAA Bty – attached to 51 LAA Bde 437 HAA Bty – joined from 79th (Hertfordshire Yeomanry) HAA Rgt July 1942 19th LAA Rgt – from 36 (Scottish) AA Bde beginning of 1942; to 54th (East Anglian) Infantry Division March 1942 60, 104, 290 LAA Btys 263 LAA Bty – to 67th LAA Rgt March 1942 67th LAA Rgt – from 51 LAA Bde early 1942; left June 200, 202 LAA Btys 263 LAA Bty (attached to 36 AA Bde) 279 LAA Bty (less one Troop) 130th (Queen's Edinburgh) LAA Rgt – see above 406, 407, 428 LAA Btys 135th LAA Rgt – newly formed February, joined April, to 36 AA Bde May 1942 94, 445, 460, 478 LAA Btys 52 AA Bde Signal Office Mixed Sub-Section, Royal Corps of Signals (RCS)