The directive issued on 14 February listed the north coast industrial areas (within range of GEE) and industrial areas beyond the operational reach of GEE (Berlin by name and northern central and southern Germany) as secondary targets to be bombed when the weather over those targets was more suitable for bombing than over the primary area. Other German cities mentioned by name and to be attacked with high explosives were Duisburg, Düsseldorf and Cologne. Billancourt in occupied France, which was the primary target in the directive issued on 5 February (Air Ministry Reference 46268 D.C.A.S) and immediately preceding this one, was to become the secondary target (it was bombed on the night of 3/4 March). In addition the RAF were also directed to carry out specific operations to support Combined Operations, such as the periodic bombardment of targets of immediate strategic importance, for example naval units (see Channel Dash that happened only two days before this directive was issued), but it added a qualifier that these were only to be carried out if good opportunities to attack primary targets were not missed.