These details will return to their respective sectors in reverse order at five-minute intervals. n. _Miscellaneous_: Details for obtaining tools, ammunition, trench supplies, etc., will be arranged for as required. o. Requisitions for miscellaneous supplies required will be submitted by company commanders to the Regimental Supply Officer not later than 3.00 p.m., October 17, 1917. 6. ORGANIZATION FOR LIAISON: a. The Signal Officer will establish necessary telephonic communications. b. Each organization will detail one runner to report to the battalion commander at regimental headquarters at 8.00 a.m. c. Four runners will be detailed for duty with each company headquarters and one runner will be detailed for duty with each platoon headquarters. These runners should be lightly equipped and wear a distinctive mark. d. At least two men per section must be able to act as guides to all company headquarters of the battalion. e. Verbal messages will not be sent by runners; all messages must be written. f. Company commanders, or their representatives, will report daily at battalion headquarters at 5.00 p.m. g. There must be accurate communication between platoons in company, and companies in battalion, in order to insure co-ordinated action. 7. DEFENSE: a. Immediately after the occupation of the trenches, company commanders will make a careful estimate of all tactical situations presented in their sectors and will plan for a stubborn defense. Care must be exercised in providing for defense in depth and lateral defense. The front line trenches of each sector will be held until actually entered by the enemy, and no sector will be abandoned until the occupants are actually forced out. b. The main line of resistance will be the support trenches (_Tremont_) and special attention must be given to the preparation for defense. If the front line trenches of any sector be captured by the enemy there will be no withdrawal from any other sector of the front line trenches for the purpose of establishing a continuous line in the support trench. c. The company commander of the reserve will organize parties for counterattacks and these parties will be held in readiness at convenient points to insure prompt movement to the front. d. Continuous occupation of the trenches without fire action must not cause a feeling of security and result in being surprised by the enemy.