At (_r_), Major X at (_s_), received a message from the right (left) assault company that it was held up by fire from (_t_). The message stated that the company would assault at (_u_) by building up a firing line at (_v_) and having a platoon attack in the direction of (_w_), and requested the assistance of the machine guns and auxiliary weapons. At the same time Major X received a message from the left (right) assault company that it had encountered slight resistance from (_x_), but was continuing to advance. At the time Major X received the messages the machine gun company was located as follows: The 1st and 2nd Platoons were in rear of the right and left assault companies, respectively, at (_y_), with guns mounted on carts. The captain with his headquarters’ detail was with Major X. Explanation of Symbols (_a_) In designating the boundary line, some natural topographical or geographical feature should be selected, such as a river, creek, road, state boundary, etc. In this problem the boundary may be some miles from the point where the problem starts and in the opposite direction from the direction of attack. (_b_) A general defensive position in rear of the ground selected for the problem. (_c_) Two, three or four regiments would be placed in the first line depending on the frontage assigned to the division and other conditions. (_d_) Compass direction—north, south, east, or west. (_e_) Describe boundaries by roads, creeks, towns, points, etc. Distance between boundaries should be such as to give appropriate frontage to the division—about 500 yards for each battalion employed as an assaulting battalion. (_f_) Give order by enumerating regiments as—1st, 2nd, 3rd, 4th Infantry. (_g_) The number of battalions in assault and in reserve may vary in different regiments, depending upon the frontage assigned to the regiment and the nature of its task. (_h_) If the regiment has more than one battalion in the first line, the text should read: “Is the right (left) assault battalion of —— Infantry.” (_i_), (_k_), (_l_), (_m_) Use letters appropriate to the companies of the designated battalion. (_n_), (_o_) Indicate the hour. (_p_) Select position suitable for firing line with position in rear suitable for direct overhead fire of machine guns. (_q_) Select suitable position for small force on the defensive. (_r_) Indicate the hour a few minutes later than (_o_). (_s_) Select a position between the assault and reserve companies with good visibility. (_t_) Defensive position for small force of Reds. (_u_) Indicate an hour that will give the rifle and machine gun companies time to get into position for the attack. (_v_) Usually on or in advance of the line of scouts. (_w_) A direction that will flank or envelop the local resistance. (_x_) One of the positions from which scouts originally received fire.