Download or read book Operation Drumbeat written by Michael Gannon and published by Harper Collins. This book was released on 2011-01-18 with total page 1269 pages. Available in PDF, EPUB and Kindle. Book excerpt: An account of Germany's little known U-boat campaign against merchant shipping along the North American Atlantic coast during the first six months of 1942. It also documents the failure of the US Navy to meet the German attack.