Of the many things a modern army requires which are to be found only in a few special places, and those, most of them, out of Europe, the most important of all is petrol. It is obviously of capital importance for air work, and where you have a number of good roads, as in the Western field of operations, it is almost as important for transport work.
Now it so happens that petrol is not found in Western Europe at all. The European supply as a whole is limited, and is in the main confined to Galicia, Roumania, and Russia. The Asiatic and American supply is only available to Austria-Hungary and Germany by way of the ocean, and the ocean is closed to them. Russian supply, of course, they cannot obtain. Galician supply swings back and forth now in the possession of the Austrian and now in that of the Russian Army.
There remains only Roumania, and though Roumania is neutral it is doubtful or rather nearly certain that no sufficient supplies are coming into the Germanic Powers from that source. This is up to the moment of writing the chief effect of the British naval superiority, to which I will next turn.
(7) Most of the things that were said in time of peace about the effect of naval superiority or “command of the sea” have proved true. The blockade of the inferior naval powers is nearly complete—though it must be remembered that they have an exceedingly limited coastline, and that the problem will be very different against a large fleet possessed of many ports upon an extended coastline.
Further, the submarine has not proved itself as formidable against men-of-war as some thought, and the superiority of large craft is still admitted. On the other hand, it has been shown that a few hostile cruisers could continue to hold the seas for a much longer period than was imagined, and permanently to threaten commerce.
The conception that almost immediately after a declaration of war naval superiority would prevent the inferior naval power from commerce destroying, and that the trade routes of the superior power would be as safe as in time of peace has broken down. So has the idea that submarines could seek out the enemy’s fleet in its ports and destroy them there.
The Political Results
When we turn to the political questions which the war has solved we have obtained immediate results of the very highest interest and importance, particularly to England.
In the first place, we have found that while the conscript system of war worked and mobilized with astonishing success, our own much more doubtful dependence upon a voluntary system for prolonged warfare has not betrayed this country. Everyone is agreed that the response to the call for volunteers, upon which there was at first great and legitimate anxiety, has been quite out of proportion to our expectations, and particularly to those of our enemies.
I think it true to say that there is nothing in which the German estimate of British psychology has been more hopelessly at sea than in this; and that the effects of this exceedingly rapid and large voluntary enlistment, principally drawn from the best material in the country, is the chief uncalculated factor in the scheme of what Germany expected to face. It is a factor that matures more slowly than many of the others, more slowly, perhaps, even than the effect of the blockade (which is also due to British effort), but it will mature with sufficient rapidity to affect all the later, and what may easily be the decisive, phases of the great war.