exposed to risks of maritime capture. The extent of the coast-line, the numerous harbors, and the many directions from which approach can be made, minimize the dangers of total blockade, to which all islands are subject. Such conditions are in themselves advantageous, but they are especially so to a navy inferior to its adversary, for they convey the power--subject, of course, to conditions of skill--of shifting operations from side to side, and finding refuge and supplies in either direction. Jamaica, being but one-tenth the size of Cuba, and one-fifth of its length, does not present the intrinsic advantages of the latter island, regarded either as a source of supplies or as a centre from which to direct effort; but when in the hands of a power supreme at sea, as at the present Great Britain is, the questions of supplies, of blockade, and of facility in direction of effort diminish in importance. That which in the one case is a matter of life and death, becomes now only an embarrassing problem, necessitating watchfulness and precaution, but by no means insoluble. No advantages of position can counterbalance, in the long-run, decisive inferiority in organized mobile force,--inferiority in troops in the field, and yet much more in ships on the sea. If Spain should become involved in war with Great Britain, as she so often before has been, the advantage she would have in Cuba as against Jamaica would be that her communications with the United States, especially with the Gulf ports, would be well under cover. By this is not meant that vessels bound to Cuba by such routes would be in unassailable security; no communications, maritime or terrestrial, can be so against raiding. What is meant is that they can be protected with much less effort than they can be attacked; that the raiders--the offence--must be much more numerous and active than the defence, because much farther from their base; and that the question of such raiding would depend consequently upon the force Great Britain could spare from other scenes of war, for it is not likely that Spain would fight her single-handed. It is quite possible that under such conditions advantage of position would more than counterbalance a _small_ disadvantage in local force. "War," said Napoleon, "is a business of positions;" by which that master of lightning-like rapidity of movement assuredly did not mean that it was a business of getting into a position and sticking there. It is in the utilization of position by mobile force that war is determined, just as the effect of a chessman depends upon both its individual value _and_ its relative position. While, therefore, in the combination of the two factors, force and position, force is intrinsically the more valuable, it is always possible that great advantage of position may outweigh small advantage of force, as 1 + 5 is greater than 2 + 3. The positional value of Cuba is extremely great.