This book attempts to analyze collaboration from a perspective that explains its appeal without the use of pathological or amoral elements of betrayal, cowardice and individual or institutional self-interest that have intruded in previous studies. The author condenses and synthesizes the existing historical literature on the subject of collaboration during World War II, and discerns a rational and moral integrity in the intentions of collaborators that give them the confidence to act and to defend themselves without regret, a philosophy comprising a logic of weakness, a normality imperative, a theory of the shield and an idea of manoeuvre through partnership. This work contends that this rational and moral discourse in collaborators reflects a "normal" mode of adjustment to coercive power and social constraint. This is illustrated through a case study of the Thatcher administration in Britain.