The series was so successful that although it was initially scheduled to run to six volumes of 16 issues each, a further two volumes were added, covering later themes such as the Chinese Civil War, the Arab–Israeli Conflict, Suez, Korean War, Vietnam War, and the rise of nationalism which led to the breakup of the European empires in the years after World War II. There were also discussions on the spread of communism, tactics and battle strategy, the post war reconstruction, the use of propaganda, the work of war correspondents and artists, profiles of the leading politicians, generals and ambassadors, and features on uniforms and medals.