were regarded as the means of fostering national industries and of
sheltering them against the overpowering competition of British
manufactures. The British claim to the dominion of the sea was regarded
as unfounded in right, and was in principle as strongly denounced as had
been the territorial domination of France. The mistress of the seas was
regarded as a tyrant, whom it would be desirable, if it were possible,
to depose, and there were many who thought that as the result of a
conflict in which the final success had been gained by the co-operation
of a number of States acting together, the gains of Great Britain which,
as time went on, were seen to be growing into a world-wide empire, had
been out of proportion to the services she had rendered to the common
cause.

Meantime during the century which has elapsed since the last great war,
there has been a complete change in the conditions of intercourse
between nations at sea and of maritime warfare. It has come about
gradually, almost imperceptibly, so that it could hardly be appreciated
before the close of the nineteenth century. But it is vital to Great
Britain that her people should understand the nature of the
transformation.

The first thing to be observed is that the British monopoly of shipping
and of oversea trade has disappeared. Great Britain still has by far the
largest mercantile marine and by far the greatest share in the world's
sea traffic, but she no longer stands alone. Germany, the United States,
France, Norway, Italy, and Japan all have great fleets of merchant
ships and do an enormous, some of them a rapidly increasing, seaborne
trade. A large number of the principal States import the raw material of
manufacture and carry on import and export on a large scale. The railway
system connects all the great manufacturing centres, even those which