About ten days I lay in that tent, suffering a bodily weakness which made my animal self crawl away and hide till the shame was passed. As usual in such circumstances my mind cleared, my senses became more acute, and I began at last to think consecutively of the Arab Revolt, as an accustomed duty to rest upon against the pain. It should have been thought out long before, but at my first landing in Hejaz there had been a crying need for action, and we had done what seemed to instinct best, not probing into the why, nor formulating what we really wanted at the end of all. Instinct thus abused without a basis of past knowledge and reflection had grown intuitive, feminine, and was now bleaching my confidence; so in this forced inaction I looked for the equation between my book-reading and my movements, and spent the intervals of uneasy sleeps and dreams in plucking at the tangle of our present.

As I have shown, I was unfortunately as much in command of the campaign as I pleased, and was untrained. In military theory I was tolerably read, my Oxford curiosity having taken me past Napoleon to Clausewitz and his school, to Caemmerer and Moltke, and the recent Frenchmen. They had all seemed to be one-sided; and after looking at Jomini and Willisen, I had found broader principles in Saxe and Guibert and the eighteenth century. However, Clausewitz was intellectually so much the master of them, and his book so logical and fascinating, that unconsciously I accepted his finality, until a comparison of Kuhne and Foch disgusted me with soldiers, wearied me of their officious glory, making me critical of all their light. In any case, my interest had been abstract, concerned with the theory and philosophy of warfare especially from the metaphysical side.

Now, in the field everything had been concrete, particularly the tiresome problem of Medina; and to distract myself from that I began to recall suitable maxims on the conduct of modern, scientific war. But they would not fit, and it worried me. Hitherto, Medina had been an obsession for us all; but now that I was ill, its image was not clear, whether it was that we were near to it (one seldom liked the attainable), or whether it was that my eyes were misty with too constant staring at the butt. One afternoon I woke from a hot sleep, running with sweat and pricking with flies, and wondered what on earth was the good of Medina to us? Its harmfulness had been patent when we were at Yenbo and the Turks in it were going to Mecca: but we had changed all that by our march to Wejh. To-day we were blockading the railway, and they only defending it. The garrison of Medina, reduced to an inoffensive size, were sitting in trenches destroying their own power of movement by eating the transport they could no longer feed. We had taken away their power to harm us, and yet wanted to take away their town. It was not a base for us like Wejh, nor a threat like Wadi Ais. What on earth did we want it for?

The camp was bestirring itself after the torpor of the midday hours; and noises from the world outside began to filter in to me past the yellow lining of the tent-canvas, whose every hole and tear was stabbed through by a long dagger of sunlight. I heard the stamping and snorting of the horses plagued with flies where they stood in the shadow of the trees, the complaint of camels, the ringing of coffee mortars, distant shots. To their burden I began to drum out the aim in war. The books gave it pat — the destruction of the armed forces of the enemy by the one process-battle. Victory could he purchased only by blood. This was a hard saying for us. As the Arabs had no organized forces, a Turkish Foch would have no aim? The Arabs would not endure casualties. How would our Clausewitz buy his victory? Von der Goltz had seemed to go deeper, saying it was necessary not to annihilate the enemy, but to break his courage. Only we showed no prospect of ever breaking anybody’s courage.

However, Goltz was a humbug, and these wise men must be talking metaphors; for we were indubitably winning our war; and as I pondered slowly, it dawned on me that we had won the Hejaz war. Out of every thousand square miles of Hejaz nine hundred and ninety-nine were now free. Did my provoked jape at Vickery, that rebellion was more like peace than like war, hold as much truth as haste? Perhaps in war the absolute did rule, but for peace a majority was good enough. If we held the rest, the Turks were welcome to the tiny fraction on which they stood, till peace or Doomsday showed them the futility of clinging to our window-pane.

I brushed off the same flies once more from my face patiently, content to know that the Hejaz War was won and finished with: won from the day we took Wejh, if we had had wit to see it. Then I broke the thread of my argument again to listen. The distant shots had grown and tied themselves into long, ragged volleys. They ceased. I strained my ears for the other sounds which I knew would follow. Sure enough across the silence came a rustle like the dragging of a skirt over the flints, around the thin walls of my tent. A pause, while the camel-riders drew up: and then the soggy tapping of canes on the thick of the beasts’ necks to make them kneel.

They knelt without noise: and I timed it in my memory: first the hesitation, as the camels, looking down, felt the soil with one foot for a soft place; then the muffled thud and the sudden loosening of breath as they dropped on their fore-legs, since this party had come far and were tired; then the shuffle as the hind legs were folded in, and the rocking as they tossed from side to side thrusting outward with their knees to bury them in the cooler subsoil below the burning flints, while the riders, with a quick soft patter of bare feet, like birds over the ground, were led off tacitly either to the coffee hearth or to Abdulla’s tent, according to their business. The camels would rest there, uneasily switching their tails across the shingle till their masters were free and looked to their stabling.

I had made a comfortable beginning of doctrine, but was left still to find an alternative end and means of war. Ours seemed unlike the ritual of which Foch was priest; and I recalled him, to see a difference in land between him and us. In his modern war — absolute war he called it — two nations professing incompatible philosophies put them to the test of force. Philosophically, it was idiotic, for while opinions were arguable, convictons needed shooting to be cured; and the struggle could end only when the supporters of the one immaterial principle had no more means of resistance against the supporters of the other. It sounded like a twentieth-century restatement of the wars of religion, whose logical end was utter destruction of one creed, and whose protagonists believed that God’s judgement would prevail. This might do for France and Germany, but would not represent the British attitude. Our Army was not intelligently maintaining a philosophic conception in Flanders or on the Canal. Efforts to make our men hate the enemy usually made them hate the fighting. Indeed Foch had knocked out his own argument by saying that such war depended on levy in mass, and was impossible with professional armies; while the old army was still the British ideal, and its manner the ambition of our ranks and our files. To me the Foch war seemed only an exterminative variety, no more absolute than another. One could as explicably call it ‘murder war’. Clausewitz enumerated all sorts of war . . . personal wars, joint-proxy duels, for dynastic reasons . . . expulsive wars, in party politics . . . commercial wars, for trade objects . . . two wars seemed seldom alike. Often the parties did not know their aim, and blundered till the march of events took control. Victory in general habit leaned to the clear-sighted, though fortune and superior intelligence could make a sad muddle of nature’s ‘inexorable’ law.

I wondered why Feisal wanted to fight the Turks, and why the Arabs helped him, and saw that their aim was geographical, to extrude the Turk from all Arabic-speaking lands in Asia. Their peace ideal of liberty could exercise itself only so. In pursuit of the ideal conditions we might kill Turks, because we disliked them very much; but the killing was a pure luxury. If they would go quietly the war would end. If not, we would urge them, or try to drive them out. In the last resort, we should be compelled to the desperate course of blood and the maxims of ‘murder war’, but as cheaply as could be for ourselves, since the Arabs fought for freedom, and that was a pleasure to be tasted only by a man alive. Posterity was a chilly thing to work for, no matter how much a man happened to love his own, or other people’s already-produced children.

At this point a slave slapped my tent-door, and asked if the Emir might call. So I struggled into more clothes, and crawled over to his great tent to sound the depth of motive in him. It was a comfortable place, luxuriously shaded and carpeted deep in strident rugs, the aniline-dyed spoils of Hussein Mabeirig’s house in Rabegh. Abdulla passed most of his day in it, laughing with his friends, and playing games with Mohammed Hassan, the court jester. I set the ball of conversation rolling between him and Shakir and the chance sheikhs, among whom was the fire-hearted Ferhan el Aida, the son of Doughty’s Motlog; and I was rewarded, for Abdulla’s words were definite. He contrasted his hearers’ present independence with their past servitude to Turkey, and roundly said that talk of Turkish heresy, or the immoral doctrine of Yeni-turan, or the illegitimate Caliphate was beside the point. It was Arab country, and the Turks were in it: that was the one issue. My argument preened itself.

The next day a great complication of boils developed out, to conceal my lessened fever, and to chain me down yet longer in impotence upon my face in this stinking tent. When it grew too hot for dreamless dozing, I picked up my tangle again, and went on ravelling it out, considering now the whole house of war in its structural aspect, which was strategy, in its arrangements, which were tactics, and in the sentiment of its inhabitants, which was psychology; for my personal duty was command, and the commander, like the master architect, was responsible for all.

The first confusion was the false antithesis between strategy, the aim in war, the synoptic regard seeing each part relative to the whole, and tactics, the means towards a strategic end, the particular steps of its staircase. They seemed only points of view from which to ponder the elements of war, the Algebraical element of things, a Biological element of lives, and the Psychological element of ideas.

The algebraical element looked to me a pure science, subject to mathematical law, inhuman. It dealt with known variables, fixed conditions, space and time, inorganic things like hills and climates and railways, with mankind in type-masses too great for individual variety, with all artificial aids and the extensions given our faculties by mechanical invention. It was essentially formulable.

Here was a pompous, professorial beginning. My wits, hostile to the abstract, took refuge in Arabia again. Translated into Arabic, the algebraic factor would first take practical account of the area we wished to deliver, and I began idly to calculate how many square miles: sixty: eighty: one hundred: perhaps one hundred and forty tho............