6.18.1 Allies

By typing ALLY <player> you may officially add someone to your list of  
allies. ALLIES will list who your official allies are, and UNALLY       
<player> will remove a player from that list. You may have, at most, 20 
officially declared allies. If you wish to unally all of your allies at 
once, simply do UNALLY ALL.                                             

The significance of official allies lies in the way some abilities work 
and in the way your loyal mobiles, and other mobiles, will treat your   
allies. We will leave it up to the individual player to discover the    
particulars of this, however.