Situation is a Union corps is in New Orleans. A CSA SP is in Fts. Philip/Jackson. A fort on the Mississippi prevents LOC up the Missippi R.
Is the corps in New Orleans out of supply?
8.2 Ultimate Supply Sources
Ultimate supply sources for the Union are:
) Union railroads that exit the North map edge.
2) Union-controlled coastal ports (if its associated coastal fort is Union controlled).
3) Any port space where the Union has naval control.
Note: A port without a Union control marker only supplies a force in that space and not beyond.