Contain 
  superclass: Tactical-Mission-Task  
  superclass: Confine 
  agent: Military-Unit <----> Actor 
  object:  Military-Unit <---->  Acted on 
  base: <----> Location 
 
Note: No definition available.  Is this in FM-390? 

FM-390: a tactical mission task that requires the commander to stop, hold, or surround enemy forces or to cause them to center their activity on a given front and prevent them from withdrawing any part of their forces for use elsewhere

