The Royal Air Force's Coastal Command carried out a vital but largely unknown struggle throughout World War II. Often equipped with obsolete aircraft, their mission was initially the protection of Britain's convoys during the Battle of the Atlantic. Much of this effort was directed against the German U-boats and, in fact, 192 out of 727 U-boats sunk were credited to Coastal Command. Actions were also taken against German surface raiders and aircraft, often involving long flights in bad weather. As the war progressed, Coastal Command adopted a more aggressive role, attacking German shipping in its home waters. Veteran Royal Air Force historian Chaz Bowyer's classic account relates the full story of all the many roles undertaken by Coastal Command, often told by those who actually took part. The detailed text is illustrated with a wealth of photographs.