Containment is the action or policy of keeping another country's power or area of control within acceptable limits or boundaries.
The containment of something dangerous or unpleasant is the act or process of keeping it under control within a particular area or place.
Fire crews are hoping they can achieve full containment of the fire before the winds pick up.
消防队员们希望他们能够在起风前对大火做到完全控制。