The book is based largely on personal testimony from these pilots, coupled with facts drawn from official archives and comment from other historical sources. Where possible, political considerations have been avoided and no outright criticism has been intended, readers being left to draw their own conclusions on the thinking, strategies, equipment and tactics discussed. Far from being an intellectual polemic on the Cold War, the text and photographs merely record a slice of history as seen through the eyes of a select few who took up arms in the defense of their respective Countries.