10.—You are Brigadier General Aaron in charge of a detachment of the 1st Division. You are about to get out your fourth field order of the campaign, which you issued and signed at ten minutes to seven on the morning of October 6, 1918. Your Chief of Staff is Lieutenant Bean. The main body, of which you are a part, is engaged with the enemy at the present time. The two bodies opposed to each other, fighting strenuously, extend from near the Belmont School House toward the north. You want the 1st Infantry to advance via the 530-618 road, and you want it to deploy whenever it is necessary for it to do so. You want it to deploy with its left flank touching the 548-618 road. After it has done this you want it to attack at the same time that the 2d Infantry does. Your artillery you want to move out by way of the road which runs through 542 and 550, and you want it to go so it will get a position somewhere near the Hill 608; it will be escorted by the 1st Battalion of the 2d Infantry. You want this artillery to support the attack in the best way it can. The 1st Battalion of the 2d Infantry should take up such formation and movement as will best provide protection for the left of your whole line. The whole of the 2d Infantry, of course, excepting the first battalion, will advance by 452. It will then take a cut across country and then by the road which goes by 546 and 548. The 2d Infantry will attack the enemy’s right flank. The cavalry should cover the left of your own troops and make strong reconnaissance of the country to the north and also to the west. A troop of this Cavalry should be sent over to the right flank of our troops. The work of this troop should be to get into communication and keep communication with your main army by telegraph. You want the Signal Detachment to give you wire communications, or in fact, any kind of communications which will best keep you in touch with the 1st Infantry. You are at the cross-roads near Mt. Vernon School House when you write your order. You have learned that there is a body of the enemy, a rather large body in fact, which is going into some position selected near Granite Hill. You gain from reliable patrols all the above information, and also the fact that this detachment of the enemy is about one-half your own strength. You decide that you are going to attack at once this detachment which is just spoken of, which is going into a position near Granite Hill. If it is going into position, and if it is now only one-half your strength, you can see that there are two reasons why you must launch your attack with the utmost vigor and celerity, because the enemy might gain reinforcements, or a good position in the meantime. You state in your order that you are going to be with the reserve all the time, and you send copies to all your officers, especially to Major Good who is commanding the cavalry, and you report what you have done by telegraph to the Chief of Staff. You