This article is a general, nonpartisan explainer. It describes the United States unless stated otherwise, and details change over time, so check official sources for the latest.
Command and control, often shortened to C2, covers how military leaders direct forces and how information flows between them. The structure that organizes U.S. operations is built around combatant commands.
Geographic and functional commands
Combatant commands are of two kinds. Geographic commands, such as those for Europe, the Indo-Pacific, or the Middle East, are responsible for all military activities in a region. Functional commands, such as those for special operations, strategic forces, cyber, or transportation, work across regions.
The Unified Command Plan
The President approves the Unified Command Plan, which assigns missions and geographic responsibilities. It is reviewed from time to time and has changed as threats and technologies have evolved.
Key ideas
- Unity of command: one commander responsible for a mission.
- Mission command: giving subordinates clear intent and the freedom to decide how to achieve it.
- Command and control systems: the networks, sensors, and procedures that link commanders with forces.
Why it matters
Clear command lines help prevent confusion and delays, and allow rapid decisions. Complicated lines can slow action and create gaps. Allies add another layer, as multinational operations require agreements on who commands whom.
Emerging issues
- Protecting communications from cyberattack and jamming.
- Operating when networks are degraded.
- Using data and automation to speed decisions without losing human judgment.
Understanding C2 helps explain why militaries invest so heavily in communication, training, and planning.
