The Pioneer Histories are intended to provide a broad survey of the great migrations of European people for purposes of trade, conquest and settlement into the non-European continents. They aim to describe a racial expansion which has created the complex world of today, so nationalistic in its instincts, so internationalised in its relationships. International affairs now claim the attention of every intelligent citizen, and problems of world-wide extent affect the security and livelihood of us all. He who would grasp their meaning and form sound judgements must look into the past for the foundations of the present, and, abandoning a local for a universal perspective, must take for his study the history of a world invaded by European ideas. It was less so in the days before the Great War. Then the emphasis was upon Europe itself: upon such questions as that of Frances eastern frontier inherited from Richelieu and Louis XIV, the militarism of Germany derived from Frederick the Great, and the Balkan entanglement which originated with the medieval migrations of Slavonic peoples and with the Turkish conquests of the fourteenth century. Now the prospect is wider, for these ancient domestic difficulties in modern form cannot properly be estimated except by correlation with the problems of a Europeanised outer world.
