 Ramba uchinyora ndima iyi - VaBritain vakatanga basa rokurwisa mabhomba muna 1940 iro raizoenderera mberi kusvikira hondo yapera. Mabhomba okutanga eBritain ose akanga ari magadzirirwo ane injini mbiri, uye Hondo yeHeligoland Bight ya1939kwakaratidza kusagadzikana kwezvimbambaira pakurwiswa nevanorwisa. Naizvozvo, RAF Bomber Command yakatendeukira kumutemo wokubhomba nharaunda usiku. Gare gare muhondo nzira dzokutsvaka dzokufamba nadzo, nzvimbo yeredhiyo, radar yokuona mepu yepasi, uye kubhomba pamwero wakaderera zvikuru zvakaita kuti zvikwanisike kurwisa nharidzano chaidzo. 