(_j_)—(_k_)—(_l_) A road is designated in field orders by naming two or more places located on it. Example: “The FOUR POINT—EMMITSBURG—FAIRPLAY road.” In this case indicate in definite terms the road that the main body of the brigade is to march on. (_m_) Designate the hour of marching of the advance guard. (_n_)—(_o_) See remarks pertaining to the symbol (_j_)—(_k_)—(_l_). The Problem =Situation No. 1=: You, Lieutenant W, commanding the first platoon, have been detailed to form the advance party. It is now (_h_). Your platoon is formed here. _Required_: The action that you, Lieutenant W, take, and the orders you issue to your platoon. Procedure The members of the class are assembled at (_g_) on the (_n—o_) road (see explanation of symbols), where it is intended that the advance guard formation is to be taken up. _The Director_: “Before taking up the problem for solution, I want to make a few remarks on the formation of a column of troops on the march and to review briefly the formation and duties of an advance guard.” Explanation _The Director_: “A column of troops on the march consists of a main body and such covering detachments as may be necessary. These covering detachments are denominated advance guards, rear guards and flank guards. They are thrown out for the purpose of gaining information of the enemy, to protect the main body from surprise, and to hold off the enemy a sufficient length of time for the main body to prepare for action. “The covering detachment that goes ahead of and protects the march of a marching column is called an ‘advance guard.’ It consists of a series of detachments or groups increasing progressively in strength from head to rear, each being charged with the protection of the group immediately following it from surprise and thus gaining time for the latter to get ready to fight. “_Formation._—The advance guard is normally divided into a support and a reserve. From the support, an advance party is sent to the front a few hundred yards, and from this advance party a small patrol, technically called a ‘point,’ is sent out. From time to time as the occasion demands, patrols are sent out to the right and left. These are called ‘flankers.’ “When the advance guard consists of a small force the reserve is omitted and we have only a support, from which an advance party is sent out. “In the problem we have an advance guard composed of one rifle company of infantry. What is the proper formation? “The advance party will consist of one platoon, from which a ‘point’ of one squad will be sent out to the front, a distance of about 200 yards. The remainder of the company will constitute the support and follow the advance party at a distance of about 400 yards. “We do away with a reserve. It would divide the company into too many component parts and make control just that much more difficult.