A structural or explanatory diagram; spacing does not represent time, geography or quantities.
| Element | Meaning |
|---|---|
| Landing space | Troops and stores first occupy a narrow shore area. |
| Exit capacity | Roads and tracks determine movement away from the water. |
| Opposing flows | Supplies move inland while wounded personnel return toward evacuation. |
| Supported expansion | A foothold grows only when its movement and protection systems grow with it. |
What this explains
The Yullor report describes connected footholds and a narrow vehicle exit. That local success matters, but congestion can still restrict the next phase. A tactical map showing friendly color on a beach does not establish the rate at which ammunition, water and vehicles can leave it.