text: Chapter 5
  silence on all nets until the relief is complete. The sudden increase in radio traffic is a quick indictor to the
  threat that a relief is occurring. Upon passage of command, the relieving unit returns to its command net and
  lifts listening silence as necessary. The relieved unit should maintain radio listening silence during its withdrawal.
  MOVEMENT CONTROL
  5-175. A priority of maintaining movement control is designating and ranking routes. The squadron
  executive officer supervises unit movement. Rally points for the relieved unit are used at company level to
  quickly organize the unit for withdrawal. Guides are positioned at critical points along the routes. AAs are
  designated and activities performed in these areas are specified. Separate AAs are designated for the incoming
  and outgoing units to minimize confusion. Time spent within AAs is minimized to avoid possible compromise.
  PASSAGE OF COMMAND
  5-176. The division or corps order may specify the passage of command as a time when relief is to be
  completed. At unit level, the commanders mutually agree to the sequence for the passage of command. This
  is physically accomplished when a specified percentage, normally greater than one-half of the relieving units
  are in position and report relief. Passage of command at the squadron and TF level is acknowledged
  face-to-face by both commanders and passed to subordinates.
  CHANGE OF MISSION
  5-177. A change of mission is another type of transition Cavalry units can expect during reconnaissance
  and security operations. Change of mission is established in the commander’s guidance and planned using
  branches and sequels. Change of mission is the term used when units transition from defensive to offensive
  operations or when the unit changes to a different type of security operation.