Johnson, Brian, — THE SECRET WAR.
Pen and Sword, Barnsley, 2004, 1st in imprint, large format paperback, 352pp, half tone photo pictorial half title and frontis, numerous in text half tone photo and line illustrations, large format (9.5 x 6.5 inches), photo pictorial wrappers, expanded from the BBC TV series of the same name, WW2 as fought by the scientists and technicians; Luftwaffe navigational beams and the countermeasures; the development and use of radar in defence and aircraft navigation; the V-1 flying bomb and V-2 rocket; the battle against the u-boats incl. the development of new weapons, new vessels and new tactics; the countering the German mines; many special weapons; and the work at Bletchley Park in the breaking of the codes produced by the Enigma machines, lightly rubbed at tips, very good,
