2.4.2 Tracing supply
A secondary supply source is:
(delete second and third bullets, replace with)
(insert after the example about Poland)
If a unit can't trace a supply path to either a primary supply source or a secondary supply source, it might be able to use a limited supply source instead. Units cannot trace to a limited supply source. In order to use a limited supply source, a unit must be stacked in the same hex as the limited supply source.
A limited supply source is:
A limited supply source must be able to trace a supply path either to a primary supply source or to a secondary supply source which is able to trace a supply path either to a primary supply source or to another secondary source, and so on. There can be any number of secondary supply sources in this chain as long as the path ultimately traces to a primary supply source of the unit tracing the path.
Supply paths
(replaces second paragraph)
If you are tracing a path from a secondary supply source to a primary supply source, it is a railway supply path. If you are tracing a path from a secondary supply source to another secondary supply source, it is a railway supply path. If you are tracing a path from a limited supply source to either a primary or secondary supply source, it is a railway supply path, however, all hexes traced must be via rail or overseas (no non-rail hexes allowed).
(replaces fourth paragraph, first sentence)
A suppy path, basic or railway, can be up to 4 hexes if traced to a primary or secondary supply source; it can be 0 hexes (but never less than 0 due to weather or terrain) if traced to a limited supply source (ie units must be on a limited supply source).
Background/Purpose: Why do only conquered capital cities have supply capabilities? Why is Oslo a better supply depot than Kiev? This rule allows a small number of units - only those actually located on the limited supply source - to be in supply. One example of usefulness here is that German units in northern Norwegian ports might actually be able to be in supply without need of an HQ nearby.