During the Second World War the Royal Canadian Navy expanded from a tiny service of 10 ships in 1939 to become the third largest Allied navy by 1945. Its primary role was convoy escort in the North Atlantic to keep open the vital lifeline carrying supplies to Britain. In small, ill-equipped ships, most notably the famous corvettes, the RCN battled U-boats and dreadful weather in a role that has often gone unheralded in many histories. This book was commissioned by the Canadian Naval Memorial Trust to commemorate the 60th anniversay of the Battle of the Atlantic. Written and complied by Donald E. Graves, it includes not only the author's text but many excerpts from the recollections of those who took part... Canadian, German, sailors, civilians. The book is generously illustrated with photographs as well as drawing, maps and diagrams that explain the intricacies of anti-submarine warfare in World War II.