_In the employment of a squad or other small detachment the designation of a greater interval than one-half pace is habitual rather than exceptional (par. 408)._ In a line of skirmishers at one-half pace interval each man may be considered as occupying, including his interval, about 1 yard of front. The squad may also be extended in depth as prescribed in par. 413. ORDER IN THE SQUAD. =369.= When it is said that a unit is =in order= in any formation it is meant that the arrangement and condition of the component elements is such that the unit is ready to execute, in the accustomed manner, any movement that is intended to be executed from the formation in question. The conditions essential to =order= in each formation of the squad are stated in paragraph 370. The squad, =in line=, for example, would not be =in order= if the troopers did not know their numbers, for it could then execute no movement based upon the division into fours, twos, or troopers. =370.= The squad =in line=, =column of fours=, or =foragers= is =in order= when the troopers of each four are arranged, from right to left in the four, in the order of their respective numbers, and each knows his number. The squad =in column of twos= is =in order= when the twos of each four are next to each other in the column, odd numbers on the right, and each trooper knows his number. When the two composed of 1 and 2 is in front, the column is said to be =right in front=; when the two composed of 3 and 4 is in front, the column is said to be =left in front=. The squad =in column of troopers= is =in order= when the troopers of each four are next to one another in the column, are arranged from front to rear in the order 1, 2, 3, 4, or 4, 3, 2, 1, and each trooper knows his number. When the order is 1, 2, 3, 4, the column is said to be =right in front=; when the order is 4, 3, 2, 1, =left in front=. It is not necessary to order in the squad, in any of the above formations, that a particular trooper or troopers be in any designated four, nor that the fours have any special relative order from right to left or front to rear. GUIDE OF THE SQUAD. (_see also_ Def. =Base=, and par. 326.) =371.= At the original formation of the squad =in line=, the leader designates a trooper by name as =guide= of the squad. The guide of the squad =in line= and =foragers= is habitually a trooper at or near the center of the squad; any trooper may, however, be designated as guide. =372.= A trooper having once been designated as guide of the squad in line continues to act as such, =in line= or =foragers=, until another trooper be specifically designated as guide. With a view, however, to avoiding possible doubt as to the identity of the guide, the leader at each change of formation that terminates in line or foragers habitually indicates the guide of the new formation.