'War room' definitions:

Definition of 'war room'

(from WordNet)
noun
A room where strategic decisions are made (especially for military or political campaigns)

Definition of 'War room'

From: GCIDE
  • War room \War" room`\
  • 1. a room in a military headquarters to which the current status of military operations is reported from the field, and the situation is evaluated, as by use of maps showing the locations of all relevant military units, both friendly and hostile. The room may also be used to plan tactics or strategy. [PJC]
  • 2. A room at the center of operations of an organization, such as a large business enterprise, where the status of operations may be discussed, or plans made, and often containing special equipment, such as charts, maps, or computers, to assist such functions. [PJC]