This book details the bombers of both sides of the opening campaign of World War II, the Nazi attack on Poland in September 1939. It illustrates a number of early-war types and variants, and has useful detail views of those early variants that other publications often gloss over in favour of information on these types' later war career (at least, in the case of the Luftwaffe aircraft). There is a lot more information in here that the reader with a command of Polish will benefit from, including a full technical breakdown of the P.37 Los and details of operations on both sides - the Polish section must make rather depressing reading, if the many photographs of aircraft destroyed on the ground are anything to go by, a result of the indecision of the Polish high command; the German section is far more extensive. The simultaneous invasion in the east by Soviet forces is dismissed in half a page, with two small official pictures of Tupolev SB-2s; although this book was published in 1991, old habits must have died hard in terms of not offering criticism of Poland's eastern neighbour. ( )