“Fall in! fall in!” cries the captain.
There is confusion throughout the camp,—a trampling of feet and loud, hurried talking. In your haste you get your boots on wrong, and buckle your cartridge-box on bottom up. You rush out in the darkness, not minding your steps, and are caught by the tent-ropes. You tumble headlong, upsetting to-morrow’s breakfast of beans. You take your place in the ranks, nervous, excited, and trembling at you know not what. The regiment rushes toward the firing, which suddenly ceases. An officer rides up in the darkness and says it is a false alarm! You march back to camp, cool and collected now, grumbling at the stupidity of the picket, who saw a bush, thought it was a Rebel, fired his gun, and alarmed the whole camp.
In the autumn of 1861 the army of the Potomac, encamped around Washington, numbered about two hundred thousand men. Before it marches to the battle-field, let us see how it is organized, how it looks, how it is fed; let us get an insight into its machinery.
Go up in the balloon which you see hanging in the air across the Potomac from Georgetown, and look down upon this great army. All the country round is dotted with white tents,—some in the open fields, and some half hid by the forest-trees. Looking away to the northwest you see the right wing. Arlington is the centre, and at Alexandria is the left wing. You see men in ranks, in files, in long lines, in masses, moving to and fro, marching and countermarching, learning how to fight a battle. There are thousands of wagons and horses; there are from two to three hundred pieces of artillery. How long the line, if all were on the march! Men marching in files are about three feet apart. A wagon with four horses occupies fifty feet. If this army was moving on a narrow country road, four cavalrymen riding abreast, and men in files of four, with all the artillery, ammunition-wagons, supply-trains, ambulances, and equipment, it would reach from Boston to Hartford, or from New York city to Albany, a hundred and fifty miles!
To move such a multitude, to bring order out of confusion, there must be a system, a plan, and an organization. Regiments are therefore formed into brigades, with usually about four regiments to a brigade. Three or four brigades compose a division, and three or four divisions make an army corps. A corps when full numbers from twenty-five to thirty thousand men.
When an army moves, the general commanding it issues his orders to the generals commanding the corps; they issue their orders to the division commanders, the division commanders to the brigadiers, they to the colonels, and the colonels to captains, and the captains to the companies. As the great wheel in the factory turns all the machinery, so one mind moves the whole army. The general-in-chief must designate the road which each corps shall take, the time when they are to march, where they are to march to, and sometimes the hour when they must arrive at an appointed place. The corps commanders must direct which of their divisions shall march first, what roads they shall take, and where they shall encamp at night. The division commanders direct what brigades shall march first. No corps, division, or brigade commander can take any other road than that assigned him, without producing confusion and delay.
The army must have its food regularly. Think how much food it takes to supply the city of Boston, or Cincinnati every day. Yet here are as many men as there are people in those cities. There are a great many more horses in the army than in the stables of both of those cities. All must be fed. There must be a constant supply of beef, pork, bread, beans, vinegar, sugar, and coffee, oats, corn, and hay.
The army must also have its supplies of clothing, its boots, shoes, and coats. It must have its ammunition, its millions of cartridges of different kinds; for there are a great many kinds of guns in the regiments,—Springfield and Enfield muskets, French, Belgian, Prussian, and Austrian guns, requiring a great many different kinds of ammunition. There are a great many different kinds of cannon. There must be no lack of ammunition, no mistake in its distribution. So there is the Quartermaster’s Department, the Commissary, and the Ordnance Department. The Quartermaster moves and clothes the army, the Commissary feeds it, and the Ordnance officer supplies it with ammunition. The general-in-chief has a Quartermaster-General, a chief Commissary and a chief Ordnance officer, who issue their orders to the chief officers in their departments attached to each corps. They issue their orders to their subordinates in the divisions, and the division officers to those in the brigades.
Then there is a Surgeon-General, who directs all the hospital operations, who must see that the sick and wounded are all taken care of. There are camp surgeons, division, brigade, and regimental surgeons. There are hospital nurses, ambulance drivers, all subject to the orders of the surgeon. No other officer can direct them. Each department is complete in itself.
It has cost a great deal of thought, labor, and money to construct this great machinery. In creating it there has been much thinking, energy, determination, and labor; and there must be constant forethought in anticipating future wants, necessities, and contingencies, when to move, where, and how. The army does not exist of its own accord, but by constant, unremitting effort.