the outpost position is extensive, it may be divided into sections, each section being numbered from the right. The extent of a section depends upon the amount of ground which can be supervised conveniently by one commander. The extent of frontage to be allotted to each company will depend on the defensive capabilities of the outpost position, and, where they exist, on the number of approaches to be guarded. The outpost position will invariably be strengthened and communications improved where necessary. Piquets and supports will do this without waiting for definite orders. . . . The outposts of a force of all arms consist of outpost mounted troops, outpost companies, and, where necessary, the reserve. Machine guns will generally be included and sometimes artillery. . . . When stationary, the duty of local protection will fall almost entirely on the infantry, most of the outposts mounted troops being withdrawn, their place in this case being with the reserve, if there be one. In certain cases, however, standing mounted patrols may be left out at night with advantage. . . .
"Machine guns with outposts may be employed to sweep approaches, and to cover ground which an enemy in advancing may be compelled to pass or occupy."[A]
Machine guns must be used on the principles given above, which naturally fall under two distinct headings, viz. use by day and use by night. Machine guns with outposts by day
