Resistance to enemy occupation has stood rather apart from the general history of the Second World War. Historians have been doubtful whether to treat it as a part of military and strategic history or a part of political and diplomatic history. Some have thought the less said about it the better, in any context. In the history of particular countries which suffered enemy occupation, the treatment of resistance has varied widely according to the outcome of the war. In some countries it has occupied a major place in their war-time history: Denmark and Yugoslavia, for quite different reasons, are important examples. In other occupied countries very little has been written about the occupation by professional historians: Greece is an outstanding example. Although Britain played a leading role in promoting resistance everywhere, the subject has not attracted many professional historians, other than those who had a personal engagement in it during the war.