Logistics Wins Wars

Amateurs discuss tactics. Professionals discuss logistics. The line is repeated so often that it has lost its edge, and it deserves to be sharpened again, because the claim behind it is stronger than the epigram suggests.

The claim is not that supply matters alongside manoeuvre. It is that supply sets the boundary within which manoeuvre is possible at all, and that the boundary is far tighter than most planning admits.

Consider what a single mechanised division consumes in a day of sustained operations: hundreds of tonnes of fuel, and, once contact is made, ammunition at a rate no peacetime exercise ever rehearses. That tonnage does not travel by intention. It travels on roads, in vehicles that themselves consume fuel, driven by people who need rest, along a route that must be held open for the entire period the formation is expected to fight.

This is why a line of advance is never drawn to a destination. It is drawn to a distance — the distance at which the supply system can still deliver, which for a force operating beyond established depots is measured in a few hundred kilometres and a small number of days.

The historical pattern is unforgiving and remarkably consistent. Campaigns very rarely fail at the point of contact. They fail some distance behind it, when the advance outruns the ability to sustain it, and the failure appears at the front as something else entirely: fatigue, hesitation, a loss of momentum nobody ordered.

The practical implication for planning is straightforward, and routinely ignored. The question to ask of any proposed operation is not whether the force can reach the objective. It is whether it can be supplied at the objective, for as long as it must remain there, along a route that will still exist when it is needed. If that question cannot be answered with figures, the plan is not a plan. It is a hope with a timetable.