text: Chapter 20
  the enemy does not escape between the two forces. Leading elements of each force should monitor a common
  radio network. Figure 20-2 depicts a linkup of two moving forces.
  Figure 20-2. Linkup of two moving forces
  ACTIONS FOLLOWING LINKUP
  20-30. When the linkup is made, the linkup force may join the stationary force, or it may pass through or
  around to continue the attack. If the linkup force is to continue operations in conjunction with the stationary
  force, a single commander for the overall force should be designated. The linkup force may immediately pass
  through the perimeter of the stationary forces, be assigned objectives within the perimeter, or be assigned
  objectives outside the perimeter, depending on its mission. Plans for these operations must be made in
  advance.