The classic account of how British intelligence penetrated and practically operated Nazi Germany’s spy network within the British IslesWith great imagination, care, and precise coordination, the British were able to identify Nazi agents, induce many to defect, and supply completely false information to Germany about bombings, battles, and even the D-Day invasion. Told by the man who masterminded the entire, unbelievable four-and-a-half-year scheme, and filled with extraordinary stories and dazzling tidbits, The Double-Cross System is a testimony to Britain’s skill in the fine art of counterespionage.