We have seen what a splendid prize was the result of British victory at sea, supplemented by British assistance to other Powers on land, a century ago. We have now to ask ourselves first of all how it came about that Great Britain was able to win it, and afterwards whether it was awarded once for all or was merely a challenge cup to be held only so long as there should be no competitor.

The answer to the first question is a matter of history. England was peculiarly favoured by fortune or by fate in the great struggles through which, during a period of three hundred years, she asserted and increased her superiority at sea until a century ago it became supremacy. She rarely had to fight alone. Her first adversary was Spain. In the conflict with Spain she had the assistance of the Dutch Provinces. When the Dutch were strong enough to become her maritime rivals she had for a time the co-operation of France. Then came a long period during which France was her antagonist. At the beginning of this epoch William III. accepted the British crown in order to be able to use the strength of England to defend his native country, Holland. His work was taken up by Marlborough, whose first great victory was won in co-operation with the Imperial commander, Prince Eugene. From that time on, each of the principal wars was a European war in which France was fighting both by sea and land, her armies being engaged against continental foes, while Great Britain could devote her energies almost exclusively to her navy. In the Seven Years' War it was the Prussian army which won the victories on land, while small British forces were enabled by the help of the navy to win an Empire from France in Canada, and to lay the foundations of the British Empire in India. In the war of American Independence, Great Britain for once stood alone, but this was the one conflict which contributed little or nothing towards establishing the ascendency of the British navy. Great Britain failed of her object because that ascendency was incomplete. Then came the wars of the French Revolution and Empire in which the British navy was the partner of the Austrian, Prussian, Russian, and Spanish armies.

These are the facts which we have to explain. We have to find out how it was that so many continental nations, whether they liked it or not, found themselves, in fighting their own battles, helping to bring about the British predominance at sea. It must be remembered that land warfare involves much heavier sacrifices of life than warfare at sea, and that though Great Britain no doubt spent great sums of money not merely in maintaining her navy but also in subsidising her allies, she could well afford to do so because the prosperity of her over-sea trade, due to her naval success, made her the richest country in Europe. The other nations that were her allies might not unnaturally feel that they had toiled and that Great Britain had gathered the increase. What is the explanation of a co-operation of which in the long run it might seem that one partner has had the principal benefit?

If two nations carry on a serious war on the same side, it may be assumed that each of them is fighting for some cause which it holds to be vital, and that some sort of common interest binds the allies together. The most vital interest of any nation is its own independence, and while that is in question it conceives of its struggle as one of self-defence. The explanation of Great Britain's having had allies in the past may therefore be that the independence of Great Britain was threatened by the same danger which threatened the independence of other Powers. This theory is made more probable by the fact that England's great struggles—that of Queen Elizabeth against Spain, that of William III. and Marlborough against Louis XIV., and of Pitt against Napoleon—were, each one of them, against an adversary whose power was so great as to overshadow the Continent and to threaten it with an ascendency which, had it not been checked, might have developed into a universal monarchy. It seems, therefore, that in the main England, in defending her own interests, was consciously or unconsciously the champion of the independence of nations against the predominance of any one of their number. The effect of Great Britain's self-defence was to facilitate the self-defence of other nations, and thus to preserve to Europe its character of a community of independent States as opposed to that which it might have acquired, if there had been no England, of a single Empire, governed from a single capital.

This is, however, only half of the answer we want. It explains to some extent why England could find other nations co-operating with her, and reveals the general nature of the cause which they maintained in common. But let us remember the distinction between a quarrel in which the main thing is to be in the right, and a fight in which the main thing is to win. The explanation just sketched is a justification of England's policy, an attempt to show that in the main she had right on her side. That is only part of the reason why she had allies. The other part is that she was strong and could help them.

She had three modes of action. She used her navy to destroy the hostile navy or navies and to obtain control of the seaways. Then she used that control partly to destroy the seaborne trade of her enemies, and partly to send armies across the sea to attack her enemies' armies. It was because she could employ these three modes of warfare, and because two of them were not available for other Powers, that her influence on the course of events was so great.

The question of moral justification is more or less speculative. I have treated it here on a hypothesis which is not new, though since I propounded it many years ago it has met with little adverse criticism. But the question of force is one of hard fact; it is fundamental. If England had not been able to win her battles at sea and to help her allies by her war against trade and by her ubiquitous if small armies, there would have been no need for hypotheses by which to justify or explain her policy; she would have long ago lost all importance and all interest except to antiquarians. Our object is to find out how she may now justify her existence, and enough has been said to make it clear that if she is to do that she must not only have a cause good enough to gain the sympathy of other Powers, but force enough to give them confidence in what she can do to help herself and them.

We are now ready to examine the second question, whether or no Great Britain's position, won a century ago, is liable to challenge.