This is a comprehensive account of the behind-the-lines operations that preceded and supported the D-Day landings and the breakout from Normandy. The French resistance played a key role in undermining German resistance during the liberation of France in 1944.They destroyed vital railways, ambushed convoys and tied down large numbers of German troops in security patrols. Many attacks were spearheaded by British and American special forces, the SAS and US 'Jedburgh teams' (ancestors of the 'Green Berets'). From the early hours of 6 June 1944 to the destruction of the German army in France, this is the story of how small teams of SAS men fought their secret war behind enemy lines.