This is an up-to-date history of the US Army Air Force's pioneering but costly raids on Germany's Messerschmitt and ball-bearing factories in World War II.
The Linebacker II campaign of 1972 saw America's fearsome but irreplaceable B-52s finally sent into action above the Vietnamese capital Hanoi in an attempt to bomb the Vietnamese to the negotiating table.
Arguably the first 'modern' air campaign, this is the story of Linebacker I which brought laser-guided bombs, electronic warfare and anti-radar missiles to bear on North Vietnam's invading army.