The Corps System
Move independently, then concentrate strength at the decisive point
- Difficulty
- Advanced
- Time to result
- ~months to results
- Steps
- 5
- Confidence
- 98%
The Corps System divides a large force into smaller, self-contained units that can move separately while remaining part of one coordinated plan. Andrew Roberts describes Napoleon's corps as mini armies: one could make contact with the enemy while the others maneuvered into position. The units then converged and concentrated for battle, creating opportunities to envelop the opposing force from one or both sides. The mechanism combines distributed movement with concentrated impact. Independence makes the overall force faster and less predictable; planned convergence prevents decentralization from becoming fragmentation. Roberts presents the system as an important example of Napoleon finding a strong strategic idea, studying it, and putting it into practical use.
Origin
Andrew Roberts explains that Napoleon drew on earlier strategic writing and put the Corps System into practice. Extracted from The Tim Ferriss Show.
Core principles
- 01Give each unit enough capability to operate independently
- 02Keep separate movement aligned to one shared objective
- 03Let one unit engage while others maneuver
- 04Concentrate strength at the decisive moment
How to run it
- 1
Create self-contained units
Divide the larger force into smaller units with enough capability to operate as mini armies.
Pro tip Design each unit so it can keep moving without constant support from the whole force.
Watch out Units that depend on continual central intervention cannot truly operate separately.
- 2
Move separately
Send the units along separate lines while keeping them aligned to the same battle plan.
Pro tip Use separation to increase maneuverability rather than to create unrelated efforts.
Watch out Separation without a common destination turns flexibility into fragmentation.
- 3
Make contact
Use one unit to engage the opposing force and hold its attention.
Pro tip Treat the first engagement as the anchor for the wider maneuver.
Watch out Do not leave the engaging unit unsupported beyond its capacity.
- 4
Maneuver around resistance
Move the other units around the opposition to create an enveloping position.
Pro tip Look for the flank or junction where pressure will divide the opposition.
Watch out Poorly timed maneuvering can expose isolated units.
- 5
Converge and concentrate
Bring the separate units together at the decisive point for the main action.
Pro tip Coordinate convergence around the moment of decision, not merely a location.
Watch out Arriving separately when concentrated force is needed defeats the system's purpose.
In the wild
Roberts describes Napoleon creating mini armies that could march separately but converge for battle. One corps engaged the enemy while the others maneuvered to envelop it, sometimes from both sides.
→ Napoleon gained a flexible way to move dispersed forces and concentrate them against the enemy.
Common mistakes
Separating without convergence
Independent movement is only useful when every unit remains aligned to the planned concentration point.
Engaging with the whole force
Committing every unit immediately removes the maneuvering advantage that the system creates.
Is it for you?
Best for
It is best for leaders directing capable units that must move flexibly but combine at a decisive point.
Not ideal for
It is not ideal when units cannot operate independently or communications cannot support convergence.
From the transcript
“to march separately but converge and concentrate for the battle”
“one of your core would engage the enemy and then he would use the other cores to outmaneuver and envelop the enemy sometimes double envelop…”
From the episode
#773: Andrew Roberts on The Habits of Churchill, Lessons from Napoleon, and The Holy Fire Inside Great Leaders
Andrew Roberts