Battle group

A battlegroup was the Klingon Defence Force designation for their fleets. 

A battlegroup was commanded by a General or the most senior General in instances where there were more then one flag officer in the battlegroup.

Klingon battlegroups

 * Klingon Third Battlegroup
 * Klingon Fourth Battlegroup
 * Klingon Ninth Battlegroup

Background information

 * Referring to the Klingon fleets as battlegroups was created so to distinguish between Federation and Klingon Empire fleets in.