3 AA Bde was now cut off from the bulk of the BEF, which was preparing to evacuate from Dunkirk (Operation Dynamo). Even after this ended on 3 June, there were still British forces in France north of the Seine, and 79th (HY) HAA Rgt maintained its defences at Le Havre covering the Seine ferries. As AADC, Lt-Col Raikes had a troop of 174 LAA Bty and 307 AA Coy, in addition to his own regiment and 4 LAA Bty: a total of 22 x 3.7-inch, 8 x Bofors, 4 x 2-pounders and 24 S/Ls. There were also some Barrage balloons and French AA guns. Nightly air attacks on the Le Havre harbour area began in earnest on 3/4 June, with the guns in action for long periods.