In telecommunication, command and control (C 2 ) is the exercise of authority and direction by a properly designated commander over assigned and attached forces in the accomplishment of the mission. Command and control functions are performed through an arrangement of personnel, equipment, communications, facilities, and procedures employed by a commander in planning, directing, coordinating, and controlling forces and operations in the accomplishment of the mission.
... Dom Pedro II was deposed in 1889 and a republican based federation was adopted.
Brazil received an influx of over 5 million immigrants in the late 19th, early 20th ...