Aggressor A wargame - about a wargame: that being the U.S. Army's theoretical design model from the '60s & '70s for conducting large scale experimental field exercises against a fictitious opponent.
Both sides have the option to have their units assigned to a single force (one ally), or made up of two allied groups.
Designate all allies' Mac (m) or Usr (u) controls.
Example: an upcoming prompt of aba would be for a player side selection of two allies: a and b, and an enemy side of just one ally a. Usually, only the first player ally will be designated with u for user control, with all others under computer control: so here the prompt aba would be replaced with umm.
Note that for the initial disposition (placement) of units, a user acting on eiher side will place all the units on its side, even if the computer would be controlling one friendly ally when play begins. So, if any of the player's enemy allys are in a user's control, that user sets up all of them at the start. If all enemy allies are in computer control, the computer sets up by itself on that side.
Perhaps the most significant option is now chosen here: that is, the requirement for observation of opponent units.